NDLI: A Fast K-Means Clustering Algorithm Based on Grid Data Reduction

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To See or Not to See...

Spacetime Puzzles in a Quantum World

Fifty Years In Space - A Report Card

Mars in Transition: Latest Results from the Red Planet

Global Warming is Unequivocal

First Jamestown, Buried Truth and Global Legacies

Test Flying the World's Fastest Airplane

Next Generation Rover for Lunar Exploration

Axel Mobility Platform for Steep Terrain Excursions and Sampling on Planetary Surfaces

Planetary Vehicle Suspension Options

Robot Mobility Concepts for Extraterrestrial Surface Exploration

Results of Coring from a Low Mass Rover

Harpoon-based Sampling for Planetary Applications

Gait Control of a Six-Legged Robot on Unlevel Terrain Using a Cognitive Architecture

An Autonomy Architecture for Aerobot Exploration of the Saturnian Moon Titan

Persistent Surveillance Using Multiple Unmanned Air Vehicles

A Future "Global Atmospheric Composition Mission" (CACM) Concept

NASA Mission to Measure Global Plant Physiology and Functional Types

Herschel/Planck Program-Preparing for Launch and Lessons Learned

The "Billion Dollar Box" Study of Science Missions to Saturnian Satellites

Exploring ExoPlanets: NASA's Future Space Missions

Development of a Satellite Sensor Network for Future Space Missions

Deformation, Ecosystem Structure, and Dynamics of Ice (DESDynI)

The Mars Science Orbiter Concept

An Evaluation of Novel Cleaning Techniques for Planetary Protection Applications

Don't Leave Home Without It: Planetary Protection for Robotic and Human Missions

Impact of Planetary Protection on Environmental Characterization and Hazards Mitigation Technologies

Anticipated Impacts of Planetary Protection Requirements on Mars Sample Return Missions

Planning the Mars Sample Receiving Facility: Biohazards, Societal Issues and Risk Communication

Technology Challenges for Planetary Probes to Dense Atmospheres

Performance of a Borehole X-Ray Fluorescence Spectrometer for Planetary Exploration

The Contained Sample Handling and Analysis System

Cassini-Huygens Mission Overview and Recent Science Results

The CloudSat Mission and the A-Train: A Revolutionary Approach to Observing Earth's Atmosphere

Phoenix - The First Mars Scout Mission

MESSENGER - A Highly Constrained Mission to the Innermost Planet

The New Horizons Mission to the Pluto System and the Kuiper Belt

Dawn: An Ion-Propelled Journey to the Beginning of the Solar System

The U.S. Rosetta Project: Mars Gravity Assist

The NASA Orbiting Carbon Observatory Mission

Lunar Radiation Risk Assessment and Shielding Design for Ionizing Space Radiation

Evolving the Medipix2 Technology For Use As An Active Space Radiation Dosimeter

A Benchmark Study: Comparison Between HETC-HEDS and Experimental Data

Radiation Protection Research Recommendations for Missions Beyond LEO

Linearized Formation-Flying Dynamics in a Perturbed Orbital Environment

Estimate Problems for Satellite Clusters

Millimeter Wave Technology for Moon and Mars Exploration

Aero-WAVE: A First Step Towards the Characterization of W Band

IKNOW Mission: Payload Design for In Orbit Test of W Band Technology

Models and Signal Processing for Millimeter-Wave LFMCW SAR Imaging

QuakeSim: Web Services, Portals, and Infrastructure for Geophysics

COSMO-SkyMed: The Dual-Use Component of a Geospatial System for Environment and Security

Integration of TETRA with Satellites

Entropy Constrained Clustering Algorithm Guided by Differential Evolution

Criteria and Trade-offs for LEO Orbit Design

Sensor-web Operations Explorer (SOX) for Earth Science Air Quality Mission Concepts

Mars Science Laboratory Entry, Descent, and Landing System Overview

Results from the Mars Science Laboratory Parachute Decelerator System Supersonic Qualification Program

Overview of the MEDLI Project

Phoenix Mars Scout Landing Risk Assessment

Entry Range Capability Analysis of the Orion Crew Module

A Terminal Descent Sensor Trade Study Overview for the Orion Landing and Recovery System

Supersonic Inflatable Aerodynamic Decelerators For Use on Future Robotic Missions to Mars

A Survey of Supersonic Retropropulsion Technology for Mars Entry, Descent, and Landing

Polymorphic Control Reconfiguration in an Autonomous UAV with UGV Collaboration

The KySat Space Express Sub-Orbital Mission Summary

The CubeSat Approach to Space Access

Post Shuttle Access to the ISS for Payloads

Utilizing Excess Capacity of Current Launch Vehicles to Lift Secondary Payloads

Form Follows Function: A Pragmatic Approach to Access-To-Space for Space Technology Experiments

Autonomous Landing and Hazard Avoidance Technology (ALHAT)

A Self Contained Method for Safe & Precise Lunar Landing

Human Interactive Landing Point Redesignation for Lunar Landing

Lunar Terrain Surface Modeling for the ALHAT Program

Analysis of On-Board Hazard Detection and Avoidance for Safe Lunar Landing

Overview of Terrain Relative Navigation Approaches for Precise Lunar Landing

Passive Optical Terrain Relative Navigation Using APLNav

The Past, Present, and Future of Electronically-Steerable Phased Arrays in Defense Applications

Broadband Conformal Phased Array with Optical Beam Forming for Airborne Satellite Communication

A Phased Array Antenna for Deep Space Communications

Use of a Multipath Model in the Meter-wave Radar Height-finding Applications

Calibration of Antennas During Construction or Expansion of Radio Arrays

Focal Plane Array Receiver for Deep-Space Communication

USAF Academy Fast-Tracking Telescope

Testing of Conventional Antennas for High Altitude Airborne Cellular Base Stations

Conceptual Design of a New Huge Deployable Antenna Structure for Space Application

Optimization of the UMTS Network Radio Coverage On-board an Aircraft

Microwave Power Beaming Strategies for Fractionated Spacecraft Systems

An Adaptive Rectangular Microstrip Patch Antenna Array Element Using Photonic Controls

Digital Beamforming Aspects of Wideband Circular Arrays

Design of a Dynamic Beamforming Antenna for Wimax Radio Systems

Selecting Codes, Modulations, Multiple Access Schemes and Link Protocols for Future NASA Missions

Formulation of Modulation Recommendations for Future NASA Space Communications

Evaluation of Multiple Access Techniques for Simultaneous Space Communications and Tracking

Formulation of Forward Error Correction Coding Recommendations for Future NASA Space Communications

Future Perspectives for the New European Data Relay System

Communications Across Complex Space Networks

Deep-Space Ka-band Link: Design, Continuity and Completeness

Evolution of the Lunar Network

An Evolvable Lunar Communication and Navigation Constellation Concept

Applying DoDAF to NASA Orion Mission Communication and Navigation Architecture

DS-TP: Deep-Space Transport Protocol

Intelligibility and Space-based Voice with Relaxed Delay Constraints

Signal Routing in a Satellite Sensor Network Using Optimisation Algorithms

Adaptive QoS in 802.11e Wireless Networks for Lunar Communications

Traffic Modeling for NASA's Space Communications and Navigation (SCaN) Network

Demand Access Protocol Design and Validation with SPIN

Cost Overhead Analysis Associated with Ipsec in the Next Generation Satellite Network

Performance Characterization of Space Communications and Navigation (SCaN) Network by Simulation

Assessing the Minimum Bandwidth Requirement for Transmitting MPEG-4 over Space

Verification of a Byzantine-Fault-Tolerant Self-Stabilizing Protocol for Clock Synchronization

Transmitting Medical Imagery over 2-Meter Amateur Packet Radio Networks using TCP Reno and UDP

The GSFC Communications, Standards, and Technology Laboratory (CSTL)

On the Optimal Extension of Ground Network Stations to Support NASA's Lunar Exploration

Geographically Targeted Information Dissemination System (GeoTIDeS)

Development of Reprogrammable High Frame-Rate Detector Devices for Laser Communication Pointing, Acquisition and Tracking

A Radiation-Hardened, High-Resolution Optical Encoder for Use in Aerospace Applications

A Study of the Relative Speed and Doppler Effects in Space-Based Networks

Hardware-in-the-Loop Emulation of Mobile Wireless Communication Environments

Adaptive Power Control for Space Communications

A Weak-signal GPS Architecture for Lunar Navigation and Communication Systems

Same Beam Tracking with the Proposed DSN Array Using Calibration Signal from Multiple Sources

Precision Spacecraft Tracking Using In-Beam Phase Referencing

MESSENGER Spacecraft In-flight Experiments: Science Return Improvement Techniques

Combined GMSK Modulation and PN Ranging for Communications and Navigation

8175-8215 MHz MILSATCOM Band for the GOES-R PDU Signal and the 8025-8400 MHz Band for the SD Downlink

Conceptual Design of Multi-Domain Dynamics for Actuation Systems Using a Bond Graph Automated Procedure

Design of an Adaptive Communication System for Implementation on Board a Future Algerian LEO Satellite

Convolutional Codes Using Nonlinear Generators for Rate One-half and Memory Order Four

Multi-Standard WIMAX/UMTS System Framework Based on SDR

Test Platform for Millimeter-wave Amplifier Linearity Characterization

Comparison of Single-Tone and Spectrally-Confined Waveform Performance in Millimeter-Wave Amplifiers

Convolutional Codes Using Nonlinear Generators for Rate One-third and Memory Order Four

Multipath Effects in GPS Receivers with Correlation Operations

Comparison of Parameter Estimation in Frequency and Time Domain by Motion's Signal Processing

A High-Order Analysis of the Distortion Effects of Nonlinear Amplifiers on CDMA Signals

Novel Adaptive Receiver for Multilevel Quadrature Amplitude Modulated Signals

Goodput and Delay in Networks with Controlled Mobility

Quality of Service In Wireless Sensor Networks through the Connectionless Scheduling Protocol

An Introduction to Satellite Based Atomic Frequency Standards

GNSS Optimizing Intercontinental Liberalization Of Air Transport

Runtime FPGA Partial Reconfiguration

Design of Digital TDRSS Waveform Equivalent Suitable for Software Defined Radio Implementation

Application-layer Codec Adaptation for Dynamic Bandwidth Resource Allocation

Constellation Design for Improved Iterative LDPC Decoding

Cognitive Radio: From Spectrum Sharing to Adaptive Learning and Reconfiguration

Signal Reconstruction in Digital Transmitter Drives

Problems with Deployment of Multi-Domained, Multi-Homed Mobile Networks

Towards a mission planning toolbox for the Airborne Network: Optimizing ground coverage under connectivity constraints

Technology Assessment Results of the Eurocontrol/FAA Future Communications Study

Multicarrier Modulation as a Navigation Signal of Opportunity

A New Scheduling Strategy for Aircraft Landings under Dynamic Position Shifting

Model-Based Verification and Validation of Component Structures for RF and Optical Experimental Systems

Promoting Robust Design of Diode Lasers for Space: A National Initiative

Advances in Coherent 2-Dimensional Vertical Cavity Laser Arrays

Moon Mineralogy Mapper Imaging Spectrometer Science Measurements

Tunable Leaky-Mode MEMS Filters for Multispectral Imaging Applications

Baseline Estimation in Distributed Spaceborne Interferometry SAR Systems

Multi-Aperture 3D Imaging Systems

Development of Laser, Detector, and Receiver Systems for an Atmospheric CO2 Lidar Profiling System

Laser Sounder for Active Remote Sensing Measurements of $CO_{2}$ Concentrations

Oxygen Spectroscopy Laser Sounding Instrument for Remote Sensing of Atmospheric Pressure

Performance of the GLAS Satellite Lidar Cloud and Aerosol Measurements

The Design and Construction of an Airborne High Spectral Resolution Lidar

Optical Metrology System for Radar Phase Correction on Large Flexible Structure

A Comparison of Template Matching Registration Methods for Polarimetric Imagery

Novel Algorithms for Optimal Compression Using Classification Metrics

Improving the Performance of Projection-Based Image Registration

Improving Image Resolution with Edge-Targeted Filter Evolution

Improvement on Masking and Flagging Technique on Reducing SST Residual

Development of Air Quality Monitoring Remote Sensor Using a Digital SLR Camera

Aerosol Retrieval at South China Sea by AVHRR Image

Sun Imaging though the Martian Atmosphere

A Hybrid-FPGA System for On-Board Data Processing Targeting the MATMOS FTIR Instrument

A High Altitude Airborne Wind Mapping Radar

GeoSTAR Performance Demonstration

Microwave Radiometers from 0.6 to 22 GHz for Juno, A Polar Orbiter around Jupiter

The UAVSAR Transmit / Receive Module

Broadband Characterization of a 100 to 180 GHz Amplifier

Design of Frequency Synthesizer for Synchronizing Airborne Bistatic SAR Systems

A Framework to Optimize Radar Resource Allocation for Multi-Target Tracking in ESA Radars

Preliminary Results from an Interferometric Post-Coronagraph Wave Front Sensor

Looking for Earth-like Planets with the SIM Planet Quest Light Mission

Design Study for a Planet-Finding Space Interferometer

Multi-scale Modeling Approach for Detecting Low Observable Targets within Sea Clutter

Information Embedding in Sonar for Authentication and Identification

Underwater Model-Based Processing for SLAM and Environment Characterization

Performance Metric Issues for Space Time Adaptive Processing Methods

Dual Channel Adaptive Antenna Nulling with Auxiliary Selection for Spaceborne Radar

MIMO Phased-Array for SMTI Radar

Adaptive Threshold Mapping Technique for Moving Target Detector in Modern Radar

Development of the Two D Wall for Simulation of Glint from Atmospheric Propagation and Multipath

Study on STAP in Non-homogeneous Clutter Environment

Using Measured RCS in a Serial, Decentralized Fusion Approach to Radar-Target Classification

HRR Signature Classification using Syntactic Pattern Recognition

Automated Global Feature Analyzer - A Driver for Tier-Scalable Reconnaissance

Bayesian Extreme Value Statistics for Novelty Detection in Gas-Turbine Engines

Daytime Lidar Characterization of Subvisual Cirrus Layers

A Novel Precoder Design for OFDM Receivers in Unknown Fading Channels

Naval Target Classification Based on the Confusion Matrix

Efficient GLRTs via SPRTs for Gravitational Wave Detection

Optimized Bernoulli Trial Technique for M Out of N Binary Integration of Radar Signals

Modeling and Interpretation of Multifunction Radars with Stochastic Grammar

Simultaneous Track-to-Track Association and Bias Removal Using Multistart Local Search

Sensor Selection for Multiple Sensor Emitter Location Systems

Image Quality Measures for Predicting Automatic Target Recognition Performance

Efficient Kriging via Fast Matrix-Vector Products

Data Fusion Architectures for Sensor Platforms

Detecting and Tracking Separating Objects Using Direct Monopulse Measurements

Grid Based Solution of Zakai Equation with Adaptive Local Refinement for Bearings-only Tracking

Improvement of Multiple Ground Targets Tracking with GMTI Sensor and Fusion of Identification Attributes

Multi-Missile Interception Integrating New Guidance Law and Game Theoretic Resource Management

Accurate Likelihood Evaluation for Multiple Model PMHT Algorithms

Recursive Bearings-Only TMA via Unscented Kalman Filter: Cartesian vs. Modified Polar Coordinates

Turn Rate Estimation Techniques in IMM Estimators for ESA Radar Tracking

Utilizing Model Structure for Efficient Simultaneous Localization and Mapping for a UAV Application

Detection and Compensation of Landmark Errors in Monte Carlo Localization

Target Tracking By A New Class Of Cost-Reference Particle Filters

Models and Algorithms for Detection and Tracking of Coordinated Groups

Using a Configurable Integrated Sensing And Processing Imager to Track Multiple Targets

A Simulation Tool for ASCTA Microsensor Network Architecture

Energy-Aware Node Selection for Localization

Development of Coherent, Expandable, Reconfigurable Instrument Node (ERIN) for Web Sensor Applications

Coordinated Data Acquisition on Sensor Webs

Adaptive Sky: A Feature Correspondence Toolbox for a Multi-Instrument, Multi-Platform Distributed Cloud Monitoring Sensor Web

Integrating Sensor Webs with Modeling and Data-assimilation Applications: An SOA Implementation

QuakeSim: Efficient Modeling of Sensor Web Data in a Web Services Environment

A Meta-Model for Generalized Algorithm and Model Enablement of Sensor Web Applications

Using a Contract Net to Dynamically Configure Sensor Webs

Rapid Response to Volcanic Eruptions with an Autonomous Sensor Web: The Nyamulagira Eruption of 2006

Optimized Autonomous Space In-situ Sensor-Web for Volcano Monitoring

Sensor Web Technologies for NASA Earth Science

Autonomous Adaptive Resource Management in Sensor Network Systems for Environmental Monitoring

The Telesupervised Adaptive Ocean Sensor Fleet Architecture

The RAD6000MC System-on-Chip Microcontroller for Spacecraft Avionics and Instrument Control

High Resolution Time Synchronization over SpaceWire Links

Radiation Hardened 150nm Standard Cell ASIC Design Library for Space Applications

High Energy Gamma-rays and Modern Electronics

A Fast K-Means Clustering Algorithm Based on Grid Data Reduction

Reconfigurable Computing Concepts for Space Missions: Universal Modular Spares

Component-Based, Run-Time Flight Software Modification

Multiparadigm Space Processing for Hyperspectral Imaging

Achieving Multipurpose Space Imaging with the ARTEMIS Reconfigurable Payload Processor

Using Duplication with Compare for On-line Error Detection in FPGA-based Designs

Fault Tolerant ICAP Controller for High-Reliable Internal Scrubbing

New Reprogrammable and Non-Volatile Radiation Tolerant FPGA: RTA3P

Ultra Low Voltage Level Shifters to Interface Sub and Super Threshold Reconfigurable Logic Cells

Progress in the Development of Field Programmable Analog Arrays for Space Applications

Bushfire Hotspot Detection Through Uninhabited Aerial Vehicles and Reconfigurable Computing

Wafer Scale Integration Enabling Space Science

High Speed RF Packaging Design and Fabrication for Ka-Band Radar Systems

Flip Chip Reliability on Dynamically Loaded Multi-Functional Spacecraft Structures

Survivability of Flip Chips Using PCBs with Carbon Fiber in a Fatigue Environment

Electrically Conductive Carbon Nanotube Adhesives on Lead Free Printed Circuit Board Surface Finishes

Copper Nanotubes for Packaging Applications

Optimized Spacecraft Fault Protection for the WISE Mission

In-Flight Anomalies and Lessons Learned from the Mars Reconnaissance Orbiter Mission

Automated Generation and Assessment of Autonomous Systems Test Cases

Lights-Out Scenario Testing for the New Horizons Autonomous Operations Subsystem

Bio-Robustness and Fault Tolerance: A New Perspective on Reliable, Survivable and Evolvable Network Systems

Developing Aerospace Applications with a ReliableWeb Services Paradigm

Control of MEMS Disc Resonance Gyroscope (DRG) using a FPGA Platform

Silicon-Germanium as an Enabling IC Technology for Extreme Environment Electronics

Ultra-Wide Temperature (-230°C to 130°C) DC-Motor Drive with SiGe Asynchronous Controller

Design and Qualification Methodology for a Successful Technology Infusion for a Wide Temperature Op-Amp

Extreme Temperature Sensing System for Venus Surface Missions

Miniaturized Data Acquisition System for Extreme Temperature Environments

Orbits Design for Remote Sensing Satellite

Attitude-Independent Geomagnetic Navigation Using Onboard Complete Three-Axis Magnetometer Calibration

Constellation Major Technical Challenges of 2007

Constellation Program Mission Operations Project Office, Status and Support Philosophy

Descent Assisted Split Habitat Lunar Lander Concept

The Next Giant Leap: NASA's Ares Launch Vehicles Overview

Ares Launch Vehicles Lean Practices Case Study

Maglev Launch and the Next Race to Space

Low-Cost Propellant Launch to Earth Orbit from a Tethered Balloon - an Update

Training and Tactical Operationally Responsive Space (ORS) Operations (TATOO)

SpaceWire for Operationally Responsive Space

Developing the Process Tools and Software Architecture for the PnPSat Initiative

Developing a Distributed Power and Grounding Architecture for PnPSat

Implementing Plug-and-Play ADCS to Support Operationally Responsive Space

Programmable Satellite Transceiver for Responsive Space

Fault Tolerance of Relative Navigation Sensing in Docking Approach of Spacecraft

Multi-Sensor Testing for Automated Rendezvous and Docking Sensor Testing at the Flight Robotics Lab

ATHLETE: An Option for Mobile Lunar Landers

Operational Lessons Learned for Systems Management and Automation on Manned Spacecraft

Mars Radiation Risk Assessment and Shielding Design for Long-Term Exposure to Ionizing Space Radiation

Technology Development and Infusion from NASA's Innovative Partnerships Program

Approach and Capture for Autonomous Rendezvous and Docking

Target Localization from 3D data for On-Orbit Autonomous Rendezvous & Docking

Docking System for Autonomous, Un-manned Docking Operations

Orbital Express Advanced Video Guidance Sensor

Next Generation Advanced Video Guidance Sensor

Independently-Sourced Series-Input Connected Converters with Uniform Current-Sharing

Automated Cyclone Identification From Remote QuikSCAT Satellite Data

Implementing Legacy-C Algorithms in FPGA Co-Processors for Performance Accelerated Smart Payloads

Experiments in Onboard Rover Traverse Science

Autonomous Calibration of Vehicle Cabin Atmosphere Monitor

Autonomous Identification and Quantification of Chemical Species with VCAM for use Onboard the ISS

Atmospheric Heating as a Research Tool: Link to Space-Based Solar Power

Wireless Avionics and Human Interfaces for Inflatable Spacecraft

A New Spacecraft Software Development Paradigm Enabled by High-Performance Commercial Processors

Equatorial Low-Earth Orbits for Missions Concerning the African Continent

Design Solutions for a University Nano-satellite

A Low-Cost, Responsive Microsat Bus Utilizing COTS Parts and Components

A Compact Power Controller for Microsat Applications

Mars Science Laboratory Roll Control System Thruster Seals

Guide Rails for Linear Separation of Powered Descent Vehicle from Mars Science Laboratory Backshell

Testing and Analysis of Separation Joints for Mars Science Laboratory

Mars Science Laboratory Heat Rejection System (HRS) Tubing Retractor

Passive Management of Deployable Cordage During and After MSL Touchdown

Implementation of a Whole Spacecraft Isolation System for the OSTM/Jason 2 Mission

Design and Fabrication of the Cruise Stage Spacecraft for MSL

Mars Science Laboratory - Backshell Interface Plate and Parachute Support Structure Subsystem

Direct Drive Precision Linear Actuator for Space Interferometry Mission (SIM) Siderostat Pointing

Mechanisms for Lowering Tethered Payloads: Lessons Learned from the Mars Exploration Program

Mechanical Description of the Mars Climate Sounder Instrument

NASA's In-Space Propulsion Technology Project Overview and Mission Applicability

Aerocapture Technology Development Overview

An Overview of Recent Developments in Electric Propulsion for NASA Science Missions

Technology Readiness of the NEXT Ion Propulsion System

In-Space Propulsion Electric Propulsion Technologies Mission Benefits

Advanced Chemical Propulsion for Science Missions

Symmetrization of Phase Limitations in a Problem of Flight Control

Application of Data Compression to the MIL-STD-1553 Data Bus

Training Benefits of Java-Based Part Task Trainers: Lessons Learned from MH-60S/MH-60R Helicopter Training

Air-to-Air Evaluation of an Amplified 802.11b Network

Evaluation of the Design Requirements of the H-1 Upgrades Blade Fold Racks

Development and Flight Test of a Reconfigurable Avionics Research Pod for the USAF Test Pilot School

An Integrated UAV Navigation System Based on Aerial Image Matching

Vision Aided Inertial Navigation with Measurement Delay for Fixed-Wing Unmanned Aerial Vehicle Landing

Micro Unmanned Aerial Vehicle Visual Servoing for Cooperative Indoor Exploration

Human Body Detection and Geolocalization for UAV Search and Rescue Missions Using Color and Thermal Imagery

Target Geolocation from a Small Unmanned Aircraft System

Distributed Real-Time Optimization Across Airborne Networks

Military Applications and Sensitivity Analysis of Coupling Game Management

A Game Theoretic Data Fusion Aided Path Planning Approach for Cooperative UAV ISR

Rapid Deployment UAV

Framework for the Conceptual Decomposition of Unmanned Aircraft Propulsion Systems

Trajectory Design for Cooperative Combat Missions

Vision-Based Trajectory Tracking Controller for Autonomous Close Proximity Operations

Robust Control Design for a Two-axis Gimbaled Stabilization System

Two Stage Architecture for Navigating Multiple Guided Weapons into a Widespread Target

The Use and Implementation of Coding Standards for High-Confidence Embedded Systems

Using Sequence Diagrams to Detect Communication Problems between Systems

Model-based Approach to Validation and Verification of Flight Critical Software

Trust Your Model - Verifying Aerospace System Models with Java Pathfinder

Verification of Plans and Procedures

Requirements for Software Exception Handling

A Software Safety Certification Tool for Automatically Generated Guidance, Navigation and Control Code

Verification of C++ Flight Software with the MCP Model Checker

Rapid Simulation Construction

Evaluating Game Technologies for Training

Efficient Simulation for Testing Loss of Separation Algorithms

Delivering Images for Mars Rover Science Planning

Contextualized Search and Faceted Browsing of Heterogeneous ISS Mission Operations Data

Functional Hierarchical Search Results Data Analysis

Data Fusion and Prediction for CBRN Transport and Dispersion for Security

Achieving Cryptographic Modernization Compliance for Reprogrammable Crypto in Space

Geotemporal Analysis

Automated Translation of Safety Critical Application Software Specifications into PLC Ladder Logic

Visualization and Formalization of User Constraints for Tight Estimation of Worst-Case Execution Time

Semantic Interoperability Integrating and Augmenting Legacy Applications with OWL Ontologies

Augmenting Data Collection and Analysis of Operational Simulations with RDF and SPARQL

Why is so Little Attention Paid to the Centralization of Data?

An Introspection Framework for Fault Tolerance in Support of Autonomous Space Systems

Intelligent Avionics with Advanced Clustering

An Architectural Pattern for Goal-Based Control

Integrating System and Software Engineering Through Modeling

Software Assurance for Model-Based Design

Automated Testing of Science Instrument Flight Software

Software Independent Verification and Validation for Spacecraft at JAXA

Cost-Benefit Analysis Methodology for PHM Applied to Legacy Commercial Aircraft

A Method of Compression in HUMS and its Effect on Analysis

Detection of Pre-Crack Fatigue Damage in a U.S. Army MH-47E Chinook Aft Rotor Shaft

High Temperature Sensor for Bearing Health Monitoring

Development and Validation of Bearing Diagnostic and Prognostic Tools using HUMS Condition Indicators

Use of Artificial Intelligence Methods for Advanced Bearing Health Diagnostics and Prognostics

SiC Power Electronics Packaging Prognostics

Seeded Fault Testing and In-situ Analysis of Critical Electronic Components in EMA Power Circuitry

Electronic Prognostics System Implementation on Power Actuator Components

Mahalanobis Distance and Projection Pursuit Analysis for Health Assessment of Electronic Systems

Leakage Fault Detection Method for Axial-Piston Variable Displacement Pumps

Automated Health Management for Gas Turbine Engine Accessory System Components

Use of Paris Law for Prediction of Component Remaining Life

Air Force C-130 Rainbow Fitting Diagnostic Technology Development

Structural Health Management and Structural Design: An Unbridgeable Gap?

Improved Estimation of Aircraft Probability of Failure

Distributed Fault Diagnosis Using Dependency Modeling without Revealing Subsystem Details

An Implementation of Prognosis with Dynamic Bayesian Networks

Dynamic Set-Covering for Real-Time Multiple Fault Diagnosis

Multivariate Survival Analysis (I): Shared Frailty Approaches to Reliability and Dependence Modeling

Reasoning Systems for Diagnostics and Prognostics

False Alarm Mitigation of Vibration Diagnostic Systems

Data-Driven Fault Detection Based on Process Monitoring using Dimension Reduction Techniques

Assessment of Operational Consequences of Aircraft Failures: Using Event Tree Analysis

A Framework for Prognostics and Health Management of Electronic Systems

Ball Grid Array (BGA) Solder Joint Intermittency Detection: SJ BIST

Multi Source Data Integration for Aircraft Health Management

Prognostics-Driven Optimal Control for Equipment Performing in Uncertain Environment

Advanced Capabilities in Difficult Measurement Situations

Real-time Probabilistic Forecasting of Wear Degradation using a Macro-scale Physical Model

Managing and Predicting Intermittent Failures Within Long Life Electronics

Power Conversion Prognostic Controller Implementation for Aeronautical Motor Drives

Uncertainty Management for Diagnostics and Prognostics of Batteries using Bayesian Techniques

A Low-Power Sensor Design, SJ Monitor, for Monitoring 24x7 the Health of BGA Solder Joints

The Role of Reliability Data Bases in Deploying CBM+, RCM and PHM with TLCSM

Survival Analysis Approach to Reliability, Survivability and Prognostics and Health Management (PHM)

Evaluation of Preventive Maintenance Task Intervals Using Field Data from a Complete Life Cycle

Competing Risks Analysis of Reliability, Survivability, and Prognostics and Health Management (PHM)

On Health Monitoring

A Low Cost Embedded Instrumentation (EI) Framework for Vehicle Health Management Systems (VHMS)

The Application of Open System Architecture for Condition Based Maintenance to Complete IVHM

Integrated Intelligent Vehicle Management Framework

CBM+ Research Environment - Facilitating Technology Development, Experimentation, and Maturation

Systematic Improvement of Fleet Operations by Integrating Enterprise Health and Maintenance Data

An Abort Failure Detection, Notification, & Response System: Overview of an ISHM Development Process

Model Based IVHM System for the Solid Rocket Booster

Pre-Launch Diagnostics for Launch Vehicles

System Health Monitoring for Space Mission Operations

Costs and Benefits of Model-based Diagnosis

Automated Software Verification & Validation: An Emerging Approach for Ground Operations

Effective Data Representation and Compression in Ground Data Systems

Hybridization of Photogrammetry and Laser Scanning Technology for As-Built 3D CAD Models

A Forward-Looking Software Reuse Strategy

Using a Gene-Splicing Based Search Technique for Complex Multi-level Resource Assignment Problems

Automated Troubleshooting of Satellite Communication Ground Equipment

Isolation and Confinement Issues in Long Duration Spaceflight

James Webb Space Telescope Ground to Flight Interface Design

Modeling of Serious Global Trends for Use with Combat Simulations

Dual Mission Scenarios for the Human Lunar Campaign - Performance, Cost, and Risk Benefits

System Testbed Use on a Mature Deep Space Mission: Cassini

Multi-mission Automated Instrument Product Generation Implemented Capabilities

Development of a Prototype Domain-Specific Language for Monitor and Control Systems

The NOAA -14 September 28, 2006(DOY271) Tumble Anomaly

Ground Systems and Flight Operations of the THEMIS Constellation Mission

Constellation Challenges and Contributions of Taiwan Weather Monitoring Satellites

Proven and Robust Ground Support Systems - GSFC Success and Lessons Learned

"Built-In" Action/Issues Tracking and Post-Ops Analysis Tool for Real-time Console Operations

Managing Unstructured Data With Structured Legacy Systems

What do you get when you Overlay an Enterprise with an Enterprise Management Process?

A Methodology of Evolving User Requirements to Launch ERP in Aircraft Industry Environment

Credible Space Cost Estimating Policy for NASA: Making Sensible Requirements Work

NASA's Cost Analysis Steering Group as a Community of Practice

Lessons Learned From Developing New Engineering Managers at JPL

Concept of Operations Storyboard Tool Refinements Based on Practical Experiences

Conceptual Design Methods and the Application of a Tradespace Modeling Tool for Deep Space Missions

Juno Mission Simulation

Evolutionary Computational Methods for the Design of Spectral Instruments

Communication-centric Spacecraft Design Optimization Tool and its Application to the Lunar Relay Satellite Design

Application of a Safety-Driven Design Methodology to an Outer Planet Exploration Mission

A Field Guide to the NASA Procedural Requirements for Systems Engineering

Coaching Valuable Systems Engineering Behaviors

Making Ethical Engineering Management Decisions in a Competitive Environment

Automated Generation of Risk and Failure Models during Early Phase Design

Criteria Minimizing Legal and Financial Risks In Airspace Businesses

Sensitivity Study for Long Term Reliability

The Use of Advanced Verification Methods to Address DO-254 Design Assurance

Modeling and Analysis Method for Radiation-Induced Upsets in Modern IC Device Models

Validation Methodology of Hardware Simulators for Spacecraft System Testing

Achieving Quality and Traceability in FPGA/ASIC Flows for DO-254 Aviation Projects

Software Maintenance Implications on Cost and Schedule

Rapid Cost Assessment of Space Mission Concepts through Application of Complexity-Based Cost Indices

Advanced Scheduling Technology for More Efficient (Shorter) Resource Constrained Schedules

An Advanced Orbital Spacecraft Cost Model

2007 IEEE Aerospace Conference

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2004 IEEE Aerospace Conference Proceedings (IEEE Cat. No.04TH8720)

2003 IEEE Aerospace Conference Proceedings (Cat. No.03TH8652)

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2001 IEEE Aerospace Conference Proceedings (Cat. No.01TH8542)

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1998 IEEE Aerospace Conference Proceedings (Cat. No.98TH8339)

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A Fast K-Means Clustering Algorithm Based on Grid Data Reduction

Content Provider	IEEE Xplore Digital Library
Author	Daqi Li Junyi Shen Hongmin Chen
Copyright Year	2008
Description	Author affiliation: Coll. of Electron. & Inf., Xi'an Jiaotong Univ., Xi'an (Daqi Li; Junyi Shen)
Abstract	K-Means is a popular clustering algorithm to find the clustering easily by iteration. But the computational complexity of the traditional k-means due to accessing the whole data in each cycle of iterative operations is too great to make it fit for very large data set. This paper presents a new clustering algorithm we have developed, fast k-means clustering algorithm based on grid data reduction (GDR-FKM), by which clustering operations can be quickly performed on very large data set. Application of the algorithm to analysis of the data relativity in TT&C has demonstrated its celerity and accuracy.
Starting Page	1
Ending Page	6
File Size	2474769
Page Count	6
File Format	PDF
ISBN	9781424414871
ISSN	1095323X
DOI	10.1109/AERO.2008.4526465
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-03-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Clustering algorithms Iterative algorithms Partitioning algorithms Computational complexity Algorithm design and analysis Educational institutions Computer science Data engineering Aerospace control Data analysis
Content Type	Text
Resource Type	Article
Subject	Aerospace Engineering Space and Planetary Science

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