NDLI: Focus improvement of highly squint bistatic synthetic aperture radar based on non-linear chirp scaling

Please wait, while we are loading the content...

Cylindrical coordinate rocket trajectory profiles and line-of-sight projective coordinates for tracking ballistic missiles from satellite infrared sensor line-of-sight observations

Development of an indoor guidance system for unmanned aerial vehicles with power industry applications

Discrimination and identification between mainlobe repeater jamming and target echo by basis pursuit

Focus improvement of highly squint bistatic synthetic aperture radar based on non-linear chirp scaling

IDEPAR: a multichannel digital video broadcasting-terrestrial passive radar technological demonstrator in terrestrial radar scenarios

Interacting multiple model tracking algorithm fusing input estimation and best linear unbiased estimation filter

Interactive clutter measurement density estimator for multitarget data association

Joint power distribution and direction of arrival estimation for wideband signals using sparse Bayesian learning

Micro-Doppler-based in-home aided and unaided walking recognition with multiple radar and sonar systems

Multistatic micro-Doppler radar feature extraction for classification of unloaded/loaded micro-drones

Non-linear estimation of the flexural lever arm for transfer alignment of airborne distributed position and orientation system

Optimal allocation of cooperative jamming resource based on hybrid quantum-behaved particle swarm optimisation and genetic algorithm

Parameters estimation of noise amplitude modulation signal

Phase based 2D passive source localisation using receiver networks

Precise aperture-dependent motion compensation for high-resolution synthetic aperture radar imaging

RSN (IET Sonar, Radar & Navigation) Editorial 2017

Radar coincidence imaging by exploiting the continuity of extended target

Range–Doppler-based centralised framework for human target tracking in multistatic radar

Robust Burg estimation of radar scatter matrix for autoregressive structured SIRV based on Fréchet medians

Synchronisation of bistatic radar using chaotic AM and chaos-based FM waveforms

Three-dimensional super resolution ISAR imaging based on 2D unitary ESPRIT scattering centre extraction technique

IET Renewable Power Generation

IET Science, Measurement & Technology

IET Signal Processing

IET Wireless Sensor Systems

Micro & Nano Letters

The Journal of Engineering

Focus improvement of highly squint bistatic synthetic aperture radar based on non-linear chirp scaling

Content Provider	IET Digital Library
Author	Li, Yu Huang, Puming Lin, Chenchen
Abstract	Synthetic aperture radar imaging at high resolution and highly squint angle is confronted with several difficulties, such as the spatial variance of range cell migration (RCM) and the azimuth-dependent property of high-order terms. In order to address the above-mentioned problems, an improved non-linear chirp scaling algorithm based on keystone transform (KT) and linear range walk correction (LRWC) is proposed. First, KT is applied to correct the second-order RCM in range frequency and azimuth time domain. Then the spatial variance of linear RCM (LRCM) is analysed, and range–azimuth coupling is alleviated through LRWC, in this way, azimuth-variant RCM can be removed by phase multiplication, which avoids the approximate error of RCMC in two-dimensional frequency domain. Taking both the spatial variance of LRCM and the difference of the minimum bistatic slant range caused by LRWC into consideration, high-precision approximation of azimuth-dependent coefficients for azimuth signal are deduced, based on which the Doppler centroid, azimuth FM rate and cubic phase can be equalised by selecting proper perturbation coefficients. The proposed algorithm leads to a large depth of focusing in both range direction and azimuth direction. Simulation results prove the effectiveness of the proposed method.
Starting Page	171
Ending Page	176
Page Count	6
ISSN	17518784
Volume Number	11
e-ISSN	17518792
Issue Number	Issue 1, Jan (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rsn/11/1
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rsn.2016.0117
Journal	IET Radar, Sonar & Navigation
Publisher Date	2016-06-06
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Azimuth Dependent Coefficient Azimuth Dependent Property Azimuth Frequency Modulated Rate Cubic Phase Doppler Centroid High Precision Approximation Highly Squint Bistatic Synthetic Aperture Radar Integral Transforms Keystone Transform Linear Range Walk Correction Minimum Bistatic Slant Range Nonlinear Chirp Scaling Optical, Image And Video Signal Processing Perturbation Coefficient Radar Imaging Radar Theory Range Cell Migration Range-azimuth Coupling Spatial Variance Synthetic Aperture Radar Synthetic Aperture Radar Image Transform
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Improvement of non-linear chirp-scaling algorithm for highly squint bistatic SAR data focusing

Highly Squint SAR Data Focusing Based on Keystone Transform and Azimuth Extended Nonlinear Chirp Scaling

Focusing translational-variant bistatic forward-looking synthetic aperture radar data using extended azimuth non-linear chirp scaling algorithm

Generalized Nonlinear Chirp Scaling Algorithm for High-Resolution Highly Squint SAR Imaging

Focusing high-squint and large-baseline one-stationary bistatic SAR data using keystone transform and enhanced nonlinear chirp scaling based on an ellipse model

Extended Nonlinear Chirp Scaling Algorithm for High-Resolution Highly Squint SAR Data Focusing

Focusing Translational Variant Bistatic Forward-Looking SAR Using Keystone Transform and Extended Nonlinear Chirp Scaling

Focusing Azimuth-Invariant Bistatic SAR Data With Chirp Scaling

A Geometry-Based Doppler Centroid Estimator for Bistatic Forward-Looking SAR

Focus improvement of highly squint bistatic synthetic aperture radar based on non-linear chirp scaling

Similar Documents

Improvement of non-linear chirp-scaling algorithm for highly squint bistatic SAR data focusing

Highly Squint SAR Data Focusing Based on Keystone Transform and Azimuth Extended Nonlinear Chirp Scaling

Focusing translational-variant bistatic forward-looking synthetic aperture radar data using extended azimuth non-linear chirp scaling algorithm

Generalized Nonlinear Chirp Scaling Algorithm for High-Resolution Highly Squint SAR Imaging

Focusing high-squint and large-baseline one-stationary bistatic SAR data using keystone transform and enhanced nonlinear chirp scaling based on an ellipse model

Extended Nonlinear Chirp Scaling Algorithm for High-Resolution Highly Squint SAR Data Focusing

Focusing Translational Variant Bistatic Forward-Looking SAR Using Keystone Transform and Extended Nonlinear Chirp Scaling

Focusing Azimuth-Invariant Bistatic SAR Data With Chirp Scaling

A Geometry-Based Doppler Centroid Estimator for Bistatic Forward-Looking SAR

Focus improvement of highly squint bistatic synthetic aperture radar based on non-linear chirp scaling