NDLI: Impact of the ionosphere on an L-band space based radar

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2008 IEEE Radar Conference

2007 IEEE Radar Conference

2006 IEEE Conference on Radar

Radar Systems Panel - Welcome

Table of contents

2006 IEEE Radar Conference (IEEE Cat. No.06CH37730C)

The legacy and future of civilian radar missions

[List of tutorials]

IEEE Sponsors [2006 IEEE Radar]

Ground processing of Cassini RADAR imagery of Titan

Scalable multifunction active phased array systems: from concept to implementation

Recent advances in spaceborne precipitation radar measurement techniques and technology

UAVSAR: a new NASA airborne SAR system for science and technology research

Swathbuckler-radar system and signal processing

The potential of bistatic HF surface wave radar system for the surveillance of water-entry area along coastline

UHF windblown clutter measurements and modeling

Non-stationarity analysis of real X-Band clutter data at different resolutions

Impact of the ionosphere on an L-band space based radar

Modeling the impact of discrete clutter on airborne adaptive radar systems

Exploiting multipath propagation for GMTI in urban environments

Improved high range resolution profiling of aircraft using stepped-frequency waveforms with an S-band phased array radar

Generation of spectrally confined transmitted radar waveforms: experimental results

A waveform strategy for detection of targets in multiplicative clutter

Barankin bound for range and Doppler estimation using orthogonal signal transmission

A general class of stepped frequency trains

Multistatic radar systems signal processing

Doppler-compensated adaptive pulse compression

Building a confidence interval for the number of signals in noise using likelihood ratio test statistics

Design and experimental validation of knowledge-based CFAR detectors

Target track classification for airport surveillance radar (ASR)

Resource management for radar tracking

Ultra-wideband two-cluster tracking system design with angle of arrival algorithm

Data mining of GMTI radar databases

Radome degradation of radar adaptive array performance

Direction of arrival (DOA) estimation using electrically small resonant dipole antennas

Wideband planar phased array antenna at Ku frequency-band for synthetic aperture radars and radar-guided missiles tracking and detection

Study of dispersive and anisotropic scatterers behavior in radar imaging using time-frequency analysis and polarimetric coherent decomposition

Classifying dielectric mine-like objects using the Huynen-Fork polarization parameters

Measurement of wet antenna effects on millimetre wave propagation

Comparison of the direction of arrival estimator for a circular aperture with triangular and square configurations

Bistatic radar scattering from an ocean surface at L-band

The analysis of wideband conformal microstrip array antenna with cosecant-squared beam shaping

Frequency diverse array radars

A real-time multiple target tracking algorithm using merged probabilistic data association technique and smoothing particle filter

Robust least squares method for interference cancellation in high frequency surface wave radar

Linear prediction of range-dependent inverse covariance matrix

Tracking the mode of operation of multi-function radars

A STAP approach to estimate drift angle and aircraft velocity

Doppler problems in orthogonal MIMO radars

Two-dimensional human tracking using a three-element Doppler and direction-of-arrival (DDOA) radar

A fast algorithm to compute band-limited interpolation from unevenly spaced sampled data using K-nearest neighbor search

Aspect dependent drivers for multi-perspective target classification

A novel approach for distributed maneuver detection

Split-gate tracking accuracy for phase coded CW radar

A Bayesian network sensor manager for heterogeneous radar suites

Target tracking in glint noise environment using nonlinear non-Gaussian Kalman filter

Resonance effects in electromagnetic propagation using a modified J.W.K.B. approach

Extraction of the signature of a buried object using GPR

Bistatic radar clutter simulations using scattering phenomenology

Effect of terrain modeling and internal clutter motion on space based radar performance

New aspects to knowledge-aided clutter analysis

Coherent multilateral radar processing for precise target geolocation

Bi-static radar cross section (RCS) reduction of impedance cylinder

Investigation of GPR configurations by ray-tracing methods

Reconstruction of sparse bandwidth by regularization method in SAR imagery

Moving target indication with dual frequency millimeter wave SAR

Correction of the effects induced by the continuous motion in airborne FMCW SAR

Motion compensation for ISAR based on the shift-and-convolution algorithm

An application of the SAR image processing toolkit: InSAR

Deconvolution of target signature for a scene with bistatic impulse radiating antennas and a sphere

Nonlinear k-space mapping method for SAR Fourier imaging

Adaptive interference pre-suppression /spl Sigma//spl Delta/-beamforming for /spl Sigma//spl Delta/-STAP

Cancellation of clutter and multipath in passive radar using a sequential approach

Near-optimal peak sidelobe binary codes

Passive maneuvering target tracking using 3D constant-turn model

Modeling sea clutter as a nonstationary and nonextensive random process

Optimum target detection using illuminators of opportunity

Multiple sectors, multi function, multi radar dwell time management using particle swarm optimization (M3RTM)

Classification of ground penetrating radar echo signals using wavelet packet and RBF

A novel approach to shared-spectrum multistatic radar

SBR sparse array performance with subarray orientation and timing errors

Cramer-Rao bounds for target Doppler and power in space based radar

Higher order clutter mitigation in bistatic space-based radar systems using a knowledge-aided STAP approach

Swathbuckler: wide swath SAR system architecture

Low spurious signal homodyne digital receiver

Direct RF sampling employing time-skewed analog to digital converters and complex finite impulse response filters

Back lobe elimination using a conformal microstrip leaky wave antenna

Multistatic SAR algorithm with image combination

Detecting moving targets in SAR via keystoning and multiple phase center interferometry

Atomic decomposition for ISAR imaging

Focusing ISAR images using the AJTF optimized with the GA and the PSO algorithm-comparison and results

The ONERA RAMSES SAR: latest significant results and future developments

Performance enhancement of the FRACTA algorithm via dimensionality reduction: results from KASSPER I

Performance of multistatic space-time adaptive processing

Use of an under-sampled likelihood ratio for GLRT and AMF detection

Feasibility of STAP for passive GSM-based radar

Beamspace space-time adaptive processing for conformal array radars

ISAR processing results from forward scatter radar measurements of ships

Transmit/receive isolation and ERP measurements of the AMRFC testbed

Space-time transmit signal construction for multi-mode radar

Multi-mission multi-mode waveform diversity

A noncoherent approach to radar localization through unknown walls

End-to-end modeling and simulation of GMTI target detection from space

High fidelity circular array simulation

A versatile bistatic & polarimetric marine radar simulator

Low sidelobe pattern synthesis and subspace projection

The clutter range-ambiguity in hybrid bistatic space-based radar

Narrow band high resolution radar imaging

Error analysis for high resolution topography with bi-static single-pass SAR interferometry

A general presentation about the OTH-Radar NOSTRADAMUS

Borehole radar performance characteristics and applications for underground change detection

Suppression of Doppler ambiguities for linear sparse arrays

Evaluation of antenna architectures for angle estimation of endo-clutter targets in airborne adaptive radars

A clutter based motion estimation and compensation technique for a nonstationary radar platform

Transmitter noise compensation - a signal processing technique for improving clutter suppression

Swathbuckler wide area SAR processing front end

Solid-state upgrade for the COBRA JUDY S-band phased array radar

On optimal resource allocation in multifunction radar systems

Review of airport surface movement radar technology

Distributed computing framework for synthetic aperture radar application

Surveillance area as a multiplicatively weighted Voronoi diagram

Implementation of method for operating multiple high frequency surface wave radars on a common carrier frequency

Swathbuckler: HPC processing and information exploitation

Maximum a-posteriori adaptive masking for clutter suppression in automatic radar target recognition

Adaptive processor convergence improvement using reiterative projection statistics

Adaptive compensation for conformal array STAP by configuration parameter estimation

Detection of targets in bandlimited and spatially correlated clutter

An eigenbased cancellation ratio for characterizing adaptive array channel match

An approach for multiple moving targets detection and velocity estimation

Robust distributed detection fusion scheme under unknown time-variant signal-to-clutter ratio conditions

Optimal solution of finite dimensional filtering problems via solution of linear ODEs

Nonquadratic regularization for waveform optimization

Reinterpreting the CLEAN algorithm as an optimum detector

The effects of Doppler and pulse eclipsing on sidelobe reduction techniques

Experimental verification of environmental models for adaptive detection and estimation in HF skywave radar

A new multi-sensor registration

Demonstrated direct sampling & demodulation of UHF & S-band signals

Classification and launch-impact point prediction of ballistic target via multiple model maximum likelihood estimator (MM-MLE)

Time-varying Doppler analysis of electromagnetic backscattering from rotating object

ISAR range alignment by minimizing the entropy of the average range profile

An improved wavelet-based method for SAR images denoising using data fusion technique

Combining watershed and statistical analysis for SAR image segmentation

Microlocal ISAR for low signal-to-noise environments

ISAR image segmentation by non linear diffusion equation

Sidelobe rotation and apodization

Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509)

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Impact of the ionosphere on an L-band space based radar

Content Provider	IEEE Xplore Digital Library
Author	Chapin, E. Chan, S.F. Chapman, B.D. Chen, C.W. Martin, J.M. Michel, T.R. Muellerschoen, R.J. Pi, X. Rosen, P.A.
Copyright Year	2006
Description	Author affiliation: Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA (Chapin, E.; Chan, S.F.; Chapman, B.D.; Chen, C.W.; Martin, J.M.; Michel, T.R.; Muellerschoen, R.J.; Pi, X.; Rosen, P.A.)
Abstract	We have quantified the impact that the ionosphere would have on a L-band interferometric synthetic aperture radar (SAR) mission using a combination of simulation, modeling, Global Positioning System (GPS) data collected during the last solar maximum, and existing spaceborne SAR data. Using the Jet Propulsion Laboratory's Global Ionospheric Maps (GIM) total electron content (TEC) estimates derived from the worldwide array of GPS stations, we determined that the sun synchronous orbit which would minimize TEC at the time of imaging has dawn and dusk equator crossings. Such an orbit also avoids the equatorial post-sunset irregularities. We used the GIM data to examine the day-to-day variability in the background ionosphere and to quantify the impact of the background ionosphere on single pass SAR performance. With the exception of Faraday rotation related effects on single polarization systems, degradation due to the background ionosphere can be avoided if a reasonable model for the ionosphere is used during processing. Our studies reveal that Faraday rotation angles rarely exceeded the 10/spl deg/ threshold that impacts biomass retrieval and that repeat pass interferometric SAR decorrelation due to variations in the background ionosphere causing variable Faraday rotations is a negligible effect. Even a dawn-dusk orbit will not avoid high latitude ionospheric irregularities. We evaluated the strength of the ionospheric irregularities using GPS scintillation data collected at Fairbanks, Alaska and modeled the impact of these irregularities on azimuth resolution, azimuth displacement, peak sidelobe ratio (PSLR), and integrated sidelobe ratio (ISLR). Our examination of ionospheric artifacts in InSAR data has revealed that the artifacts occur primarily in the polar cap data, not auroral zone data as was previously thought.
File Size	992642
File Format	PDF
ISBN	0780394968
DOI	10.1109/RADAR.2006.1631775
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-04-24
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ionosphere L-band Spaceborne radar Global Positioning System Synthetic aperture radar interferometry Synthetic aperture radar Azimuth Propulsion Laboratories Electrons
Content Type	Text
Resource Type	Article

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