A SAR MOTION COMPENSATION ALGORITHM BASED ON INS AND GPS

Jinyang Song; Chengfa Xu

doi:10.1049/icp.2021.0815

A SAR MOTION COMPENSATION ALGORITHM BASED ON INS AND GPS

Jinyang Song, Chengfa Xu^*

^*Corresponding author for this work

School of Information and Electronics

Beijing Institute of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Citations (Scopus)

Abstract

Back Projection (BP) algorithm has been widely used in SAR imaging, and SAR motion compensation largely determines the quality of SAR imaging. This paper first analyses the error source of SAR motion compensation, and then proposes a SAR motion compensation algorithm and its FPGA implementation for uniform acceleration motion model. The algorithm performs coordinate system conversion and interpolation processing on INS data and GPS data, and obtains the real-time radar antenna phase centre through recursion, thereby solving the problem of accurate compensation for SAR imaging of moving platforms. Finally, it is verified that the FPGA implementation of the algorithm can meet the requirements by comparing the results with the simulation results of MATLAB.

Original language	English
Title of host publication	IET Conference Proceedings
Publisher	Institution of Engineering and Technology
Pages	576-581
Number of pages	6
Volume	2020
Edition	9
ISBN (Electronic)	9781839535406
DOIs	https://doi.org/10.1049/icp.2021.0815
Publication status	Published - 2020
Event	5th IET International Radar Conference, IET IRC 2020 - Virtual, Online Duration: 4 Nov 2020 → 6 Nov 2020

Conference

Conference	5th IET International Radar Conference, IET IRC 2020
City	Virtual, Online
Period	4/11/20 → 6/11/20

Keywords

BP ALGORITHM
GPS
INS
MOTION COMPENSATION
SAR

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10.1049/icp.2021.0815

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@inproceedings{12eec104b777444d933a4644fa5de2ce,

title = "A SAR MOTION COMPENSATION ALGORITHM BASED ON INS AND GPS",

abstract = "Back Projection (BP) algorithm has been widely used in SAR imaging, and SAR motion compensation largely determines the quality of SAR imaging. This paper first analyses the error source of SAR motion compensation, and then proposes a SAR motion compensation algorithm and its FPGA implementation for uniform acceleration motion model. The algorithm performs coordinate system conversion and interpolation processing on INS data and GPS data, and obtains the real-time radar antenna phase centre through recursion, thereby solving the problem of accurate compensation for SAR imaging of moving platforms. Finally, it is verified that the FPGA implementation of the algorithm can meet the requirements by comparing the results with the simulation results of MATLAB.",

keywords = "BP ALGORITHM, GPS, INS, MOTION COMPENSATION, SAR",

author = "Jinyang Song and Chengfa Xu",

note = "Publisher Copyright: {\textcopyright} 2020 IET Conference Proceedings. All rights reserved.; 5th IET International Radar Conference, IET IRC 2020 ; Conference date: 04-11-2020 Through 06-11-2020",

year = "2020",

doi = "10.1049/icp.2021.0815",

language = "English",

volume = "2020",

pages = "576--581",

booktitle = "IET Conference Proceedings",

publisher = "Institution of Engineering and Technology",

address = "United Kingdom",

edition = "9",

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TY - GEN

T1 - A SAR MOTION COMPENSATION ALGORITHM BASED ON INS AND GPS

AU - Song, Jinyang

AU - Xu, Chengfa

PY - 2020

Y1 - 2020

N2 - Back Projection (BP) algorithm has been widely used in SAR imaging, and SAR motion compensation largely determines the quality of SAR imaging. This paper first analyses the error source of SAR motion compensation, and then proposes a SAR motion compensation algorithm and its FPGA implementation for uniform acceleration motion model. The algorithm performs coordinate system conversion and interpolation processing on INS data and GPS data, and obtains the real-time radar antenna phase centre through recursion, thereby solving the problem of accurate compensation for SAR imaging of moving platforms. Finally, it is verified that the FPGA implementation of the algorithm can meet the requirements by comparing the results with the simulation results of MATLAB.

AB - Back Projection (BP) algorithm has been widely used in SAR imaging, and SAR motion compensation largely determines the quality of SAR imaging. This paper first analyses the error source of SAR motion compensation, and then proposes a SAR motion compensation algorithm and its FPGA implementation for uniform acceleration motion model. The algorithm performs coordinate system conversion and interpolation processing on INS data and GPS data, and obtains the real-time radar antenna phase centre through recursion, thereby solving the problem of accurate compensation for SAR imaging of moving platforms. Finally, it is verified that the FPGA implementation of the algorithm can meet the requirements by comparing the results with the simulation results of MATLAB.

KW - BP ALGORITHM

KW - GPS

KW - INS

KW - MOTION COMPENSATION

KW - SAR

UR - http://www.scopus.com/inward/record.url?scp=85141699439&partnerID=8YFLogxK

U2 - 10.1049/icp.2021.0815

DO - 10.1049/icp.2021.0815

M3 - Conference contribution

AN - SCOPUS:85141699439

VL - 2020

SP - 576

EP - 581

BT - IET Conference Proceedings

PB - Institution of Engineering and Technology

T2 - 5th IET International Radar Conference, IET IRC 2020

Y2 - 4 November 2020 through 6 November 2020

ER -

A SAR MOTION COMPENSATION ALGORITHM BASED ON INS AND GPS

Abstract

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Keywords

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