FOCUSING OF SPACEBORNE SAR DATA USING THE IMPROVED NONLINEAR CHIRP SCALING ALGORITHM

被引：5

作者：

Tang, Wanru ^{[1
]}

Huang, Bang ^{[1
]}

Zhang, Shunsheng ^{[2
]}

Wang, WenQin ^{[1
]}

Liu, Wenbo ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Commun & Informat Engn, Chengdu 611731, Peoples R China

[2] Univ Elect Sci & Technol China, Res Inst Elect Sci & Technol, Chengdu 611731, Peoples R China

来源：

IGARSS 2020 - 2020 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM | 2020年

关键词：

Bistatic SAR; chirp scaling; improved nonlinear chirp scaling; NLCS; perturbation;

D O I：

10.1109/IGARSS39084.2020.9323674

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

Spaceborne bistatic synthetic aperture radar (BiSAR) system with geosynchronous-earth-orbit (GEO) transmitter and a low-earth-orbit (LEO) receiver has many advantages which are fine resolution, higher signal-to-noise (SNR), shortest revisit cycle. However, BiSAR data are often azimuth variant because of the sum of two hyperbolic range equation which bring technical challenges to image focus. We address an improved nonlinear chirp scaling (NLCS) algorithm in this paper. The key is introduced a cubic perturbation function in the azimuth domain and used an modified NLCS algorithm to complete azimuth compression, the method of series of reversion (MSR) to obtain an accurate signal spectrum. Simulation results shows the effective of our proposed method.

引用

页码：6555 / 6558

页数：4

共 50 条

[1] Focusing bistatic SAR data using the nonlinear chirp scaling algorithm
Wong, Frank H.
Cumming, Ian G.
Neo, Yew Lam
[J]. IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2008, 46 (09): : 2493 - 2505
[2] A new subaperture chirp scaling algorithm for spaceborne spotlight SAR data focusing
Sun Jinping
Yang Zhifeng
Hong Wenb
Mao Shiyi
[J]. 2007 1ST ASIAN AND PACIFIC CONFERENCE ON SYNTHETIC APERTURE RADAR PROCEEDINGS, 2007, : 221 - +
[3] Focusing of geosynchronous SAR with nonlinear chirp scaling algorithm
Hu, Bin
Jiang, Yicheng
Zhang, Shunsheng
Yeo, Tat-Soon
[J]. ELECTRONICS LETTERS, 2015, 51 (15) : 1195 - 1196
[4] A Deramp Chirp Scaling algorithm for processing spaceborne spotlight SAR data
Wang, GD
[J]. 2004 4th INTERNATIONAL CONFERENCE ON MICROWAVE AND MILLIMETER WAVE TECHNOLOGY PROCEEDINGS, 2004, : 659 - 663
[5] Focusing of tandem bistatic SAR data using the chirp-scaling algorithm
Shichao Chen
Mengdao Xing
Song Zhou
Lei Zhang
Zheng Bao
[J]. EURASIP Journal on Advances in Signal Processing, 2013
[6] Focusing of tandem bistatic SAR data using the chirp-scaling algorithm
Chen, Shichao
Xing, Mengdao
Zhou, Song
Zhang, Lei
Bao, Zheng
[J]. EURASIP JOURNAL ON ADVANCES IN SIGNAL PROCESSING, 2013,
[7] Focusing of Highly Squinted SAR Data With Frequency Nonlinear Chirp Scaling
Li, Zhenyu
Liang, Yi
Xing, Mengdao
Huai, Yuanyuan
Zeng, Letian
Bao, Zheng
[J]. IEEE GEOSCIENCE AND REMOTE SENSING LETTERS, 2016, 13 (01) : 23 - 27
[8] Focusing Highly Squinted Data Using the Extended Nonlinear Chirp Scaling Algorithm
Liu Gao-gao
Zhang Lin-rang
Liu Nan
Chen Guang-feng
Zhang Yan
[J]. IEEE GEOSCIENCE AND REMOTE SENSING LETTERS, 2013, 10 (02) : 342 - 346
[9] Wide Nonlinear Chirp Scaling Algorithm for Spaceborne Stripmap Range Sweep SAR Imaging
Wang, Yan
Li, Jing-Wen
Yang, Jian
[J]. IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2017, 55 (12): : 6922 - 6936
[10] Focusing highly squinted missile-borne SAR data using azimuth frequency nonlinear chirp scaling algorithm
Zhang, Yan
Qu, Tan
[J]. JOURNAL OF REAL-TIME IMAGE PROCESSING, 2021, 18 (04) : 1301 - 1308

← 1 2 3 4 5 →