Bistatic ISAR distortion and defocusing analysis

Yicheng Jiang; Sibo Sun; Tat Soon Yeo; Yeshu Yuan

doi:10.1109/TAES.2016.140028

Bistatic ISAR distortion and defocusing analysis

Yicheng Jiang
, Sibo Sun
, Tat Soon Yeo^*
, Yeshu Yuan

^*Corresponding author for this work

School of Electronics and Information Engineering

Harbin Institute of Technology
National University of Singapore

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

36 Scopus citations

Abstract

Bistatic inverse synthetic aperture radar (ISAR) is an efficient geometric configuration of ISAR to image targets traveling along radar transmitter's line of sight, but it has the problem of defocusing and distortion because of the time-varying bistatic angle. In this paper, we derive the defocusing term and the distortion term by expanding the bistatic angle using first-order Taylor expansion. In addition, necessary constraints to neglect the defocusing term are provided via point spread function analysis, and a novel method to eliminate distortion based on linked scatterers is proposed. Simulation results validate our theoretical analysis and show the effectiveness of our method.

Original language	English
Article number	7511850
Pages (from-to)	1168-1182
Number of pages	15
Journal	IEEE Transactions on Aerospace and Electronic Systems
Volume	52
Issue number	3
DOIs	https://doi.org/10.1109/TAES.2016.140028
State	Published - Jun 2016

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title = "Bistatic ISAR distortion and defocusing analysis",

abstract = "Bistatic inverse synthetic aperture radar (ISAR) is an efficient geometric configuration of ISAR to image targets traveling along radar transmitter's line of sight, but it has the problem of defocusing and distortion because of the time-varying bistatic angle. In this paper, we derive the defocusing term and the distortion term by expanding the bistatic angle using first-order Taylor expansion. In addition, necessary constraints to neglect the defocusing term are provided via point spread function analysis, and a novel method to eliminate distortion based on linked scatterers is proposed. Simulation results validate our theoretical analysis and show the effectiveness of our method.",

author = "Yicheng Jiang and Sibo Sun and Yeo, \{Tat Soon\} and Yeshu Yuan",

note = "Publisher Copyright: {\textcopyright} 2016 IEEE.",

year = "2016",

month = jun,

doi = "10.1109/TAES.2016.140028",

language = "英语",

volume = "52",

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TY - JOUR

T1 - Bistatic ISAR distortion and defocusing analysis

AU - Jiang, Yicheng

AU - Sun, Sibo

AU - Yeo, Tat Soon

AU - Yuan, Yeshu

PY - 2016/6

Y1 - 2016/6

N2 - Bistatic inverse synthetic aperture radar (ISAR) is an efficient geometric configuration of ISAR to image targets traveling along radar transmitter's line of sight, but it has the problem of defocusing and distortion because of the time-varying bistatic angle. In this paper, we derive the defocusing term and the distortion term by expanding the bistatic angle using first-order Taylor expansion. In addition, necessary constraints to neglect the defocusing term are provided via point spread function analysis, and a novel method to eliminate distortion based on linked scatterers is proposed. Simulation results validate our theoretical analysis and show the effectiveness of our method.

AB - Bistatic inverse synthetic aperture radar (ISAR) is an efficient geometric configuration of ISAR to image targets traveling along radar transmitter's line of sight, but it has the problem of defocusing and distortion because of the time-varying bistatic angle. In this paper, we derive the defocusing term and the distortion term by expanding the bistatic angle using first-order Taylor expansion. In addition, necessary constraints to neglect the defocusing term are provided via point spread function analysis, and a novel method to eliminate distortion based on linked scatterers is proposed. Simulation results validate our theoretical analysis and show the effectiveness of our method.

UR - https://www.scopus.com/pages/publications/84979914270

U2 - 10.1109/TAES.2016.140028

DO - 10.1109/TAES.2016.140028

M3 - 文章

AN - SCOPUS:84979914270

SN - 0018-9251

VL - 52

SP - 1168

EP - 1182

JO - IEEE Transactions on Aerospace and Electronic Systems

JF - IEEE Transactions on Aerospace and Electronic Systems

IS - 3

M1 - 7511850

ER -

Bistatic ISAR distortion and defocusing analysis

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