A target localization error analysis method for bistatic SAR based on gradient theory

Junjie Wu; Ning Du; Yushi Xu; Zhongyu Li; Jianyu Yang

doi:10.1080/2150704X.2019.1569784

A target localization error analysis method for bistatic SAR based on gradient theory

Junjie Wu
, Ning Du
, Yushi Xu
, Zhongyu Li
, Jianyu Yang

University of Electronic Science and Technology of China

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Bistatic range sum (BRS) equation and Doppler equation of bistatic synthetic aperture radar (BiSAR) can be used to achieve target localization in BiSAR images. Because of the double square roots existing in BiSAR range history, it is hard to analyze the target localization error of a BiSAR system by calculating the partial derivatives directly. In this letter, a method utilizing spatial gradient vectors of BRS and Doppler frequency is proposed to derive the analytic solution of localization error for BiSAR. The effectiveness of the method is validated by a numerical simulation experiment.

Original language	English
Pages (from-to)	478-487
Number of pages	10
Journal	Remote Sensing Letters
Volume	10
Issue number	5
DOIs	https://doi.org/10.1080/2150704X.2019.1569784
State	Published - 4 May 2019
Externally published	Yes

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10.1080/2150704X.2019.1569784

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title = "A target localization error analysis method for bistatic SAR based on gradient theory",

abstract = "Bistatic range sum (BRS) equation and Doppler equation of bistatic synthetic aperture radar (BiSAR) can be used to achieve target localization in BiSAR images. Because of the double square roots existing in BiSAR range history, it is hard to analyze the target localization error of a BiSAR system by calculating the partial derivatives directly. In this letter, a method utilizing spatial gradient vectors of BRS and Doppler frequency is proposed to derive the analytic solution of localization error for BiSAR. The effectiveness of the method is validated by a numerical simulation experiment.",

author = "Junjie Wu and Ning Du and Yushi Xu and Zhongyu Li and Jianyu Yang",

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T1 - A target localization error analysis method for bistatic SAR based on gradient theory

AU - Wu, Junjie

AU - Du, Ning

AU - Xu, Yushi

AU - Li, Zhongyu

AU - Yang, Jianyu

PY - 2019/5/4

Y1 - 2019/5/4

N2 - Bistatic range sum (BRS) equation and Doppler equation of bistatic synthetic aperture radar (BiSAR) can be used to achieve target localization in BiSAR images. Because of the double square roots existing in BiSAR range history, it is hard to analyze the target localization error of a BiSAR system by calculating the partial derivatives directly. In this letter, a method utilizing spatial gradient vectors of BRS and Doppler frequency is proposed to derive the analytic solution of localization error for BiSAR. The effectiveness of the method is validated by a numerical simulation experiment.

AB - Bistatic range sum (BRS) equation and Doppler equation of bistatic synthetic aperture radar (BiSAR) can be used to achieve target localization in BiSAR images. Because of the double square roots existing in BiSAR range history, it is hard to analyze the target localization error of a BiSAR system by calculating the partial derivatives directly. In this letter, a method utilizing spatial gradient vectors of BRS and Doppler frequency is proposed to derive the analytic solution of localization error for BiSAR. The effectiveness of the method is validated by a numerical simulation experiment.

UR - https://www.scopus.com/pages/publications/85060999588

U2 - 10.1080/2150704X.2019.1569784

DO - 10.1080/2150704X.2019.1569784

M3 - 文章

AN - SCOPUS:85060999588

SN - 2150-704X

VL - 10

SP - 478

EP - 487

JO - Remote Sensing Letters

JF - Remote Sensing Letters

IS - 5

ER -

A target localization error analysis method for bistatic SAR based on gradient theory

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