Nonstationary Clutter Compensation for Airborne Surveillance Radar Systems With Crab Angle

Lingyu Wang; Penghui Huang; Xiang Gen Xia; Donghong Wang; Jiangyuan Chen; Yongyan Sun; Xingzhao Liu

doi:10.1109/LGRS.2023.3287911

Nonstationary Clutter Compensation for Airborne Surveillance Radar Systems With Crab Angle

Lingyu Wang, Penghui Huang^*, Xiang Gen Xia, Donghong Wang, Jiangyuan Chen, Yongyan Sun, Xingzhao Liu^*

^*Corresponding author for this work

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

1 Citation (Scopus)

Abstract

In this letter, the clutter range dependence issue caused by crab angle is investigated in an airborne multichannel radar system. A new method is proposed to accomplish the crab angle estimation and the nonstationary error compensation. First, from the center-biased and spectrum-broadened characteristics of the clutter space-time spectrum in the case of nonneglected crab angle, a 1-D cost function based on space-time spectrum broadening degree is constructed to achieve the accurate crab angle estimation. Then, the clutter nonstationary errors can be effectively compensated in the post-Dopplerdomain,significantly improving the subsequent space-time adaptive processing (STAP) performance. Simulation results are presented to validate the feasibility and effectiveness of the proposed method.

Original language	English
Article number	3505405
Journal	IEEE Geoscience and Remote Sensing Letters
Volume	20
DOIs	https://doi.org/10.1109/LGRS.2023.3287911
Publication status	Published - 2023
Externally published	Yes

Keywords

Airborne radar system
clutter suppression
crab angle estimation
nonstationary error compensation
space time adaptive processing (STAP)

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10.1109/LGRS.2023.3287911

Cite this

@article{8c490a4ac54b490f8623a292e279fc8f,

title = "Nonstationary Clutter Compensation for Airborne Surveillance Radar Systems With Crab Angle",

abstract = "In this letter, the clutter range dependence issue caused by crab angle is investigated in an airborne multichannel radar system. A new method is proposed to accomplish the crab angle estimation and the nonstationary error compensation. First, from the center-biased and spectrum-broadened characteristics of the clutter space-time spectrum in the case of nonneglected crab angle, a 1-D cost function based on space-time spectrum broadening degree is constructed to achieve the accurate crab angle estimation. Then, the clutter nonstationary errors can be effectively compensated in the post-Dopplerdomain,significantly improving the subsequent space-time adaptive processing (STAP) performance. Simulation results are presented to validate the feasibility and effectiveness of the proposed method.",

keywords = "Airborne radar system, clutter suppression, crab angle estimation, nonstationary error compensation, space time adaptive processing (STAP)",

author = "Lingyu Wang and Penghui Huang and Xia, {Xiang Gen} and Donghong Wang and Jiangyuan Chen and Yongyan Sun and Xingzhao Liu",

note = "Publisher Copyright: {\textcopyright} 2004-2012 IEEE.",

year = "2023",

doi = "10.1109/LGRS.2023.3287911",

language = "English",

volume = "20",

journal = "IEEE Geoscience and Remote Sensing Letters",

issn = "1545-598X",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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TY - JOUR

T1 - Nonstationary Clutter Compensation for Airborne Surveillance Radar Systems With Crab Angle

AU - Wang, Lingyu

AU - Huang, Penghui

AU - Xia, Xiang Gen

AU - Wang, Donghong

AU - Chen, Jiangyuan

AU - Sun, Yongyan

AU - Liu, Xingzhao

PY - 2023

Y1 - 2023

N2 - In this letter, the clutter range dependence issue caused by crab angle is investigated in an airborne multichannel radar system. A new method is proposed to accomplish the crab angle estimation and the nonstationary error compensation. First, from the center-biased and spectrum-broadened characteristics of the clutter space-time spectrum in the case of nonneglected crab angle, a 1-D cost function based on space-time spectrum broadening degree is constructed to achieve the accurate crab angle estimation. Then, the clutter nonstationary errors can be effectively compensated in the post-Dopplerdomain,significantly improving the subsequent space-time adaptive processing (STAP) performance. Simulation results are presented to validate the feasibility and effectiveness of the proposed method.

AB - In this letter, the clutter range dependence issue caused by crab angle is investigated in an airborne multichannel radar system. A new method is proposed to accomplish the crab angle estimation and the nonstationary error compensation. First, from the center-biased and spectrum-broadened characteristics of the clutter space-time spectrum in the case of nonneglected crab angle, a 1-D cost function based on space-time spectrum broadening degree is constructed to achieve the accurate crab angle estimation. Then, the clutter nonstationary errors can be effectively compensated in the post-Dopplerdomain,significantly improving the subsequent space-time adaptive processing (STAP) performance. Simulation results are presented to validate the feasibility and effectiveness of the proposed method.

KW - Airborne radar system

KW - clutter suppression

KW - crab angle estimation

KW - nonstationary error compensation

KW - space time adaptive processing (STAP)

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U2 - 10.1109/LGRS.2023.3287911

DO - 10.1109/LGRS.2023.3287911

M3 - Article

AN - SCOPUS:85163449409

SN - 1545-598X

VL - 20

JO - IEEE Geoscience and Remote Sensing Letters

JF - IEEE Geoscience and Remote Sensing Letters

M1 - 3505405

ER -

Nonstationary Clutter Compensation for Airborne Surveillance Radar Systems With Crab Angle

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Keywords

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