Scale effect removal and range migration correction for hypersonic target coherent detection

WU Shang ¹SUN Zhi ¹JIANG Xingtao ¹ZHANG Haonan ¹DENG Jiangyun ¹LI Xiaolong ¹CUI Guolong¹

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作者信息

1. School of Information and Communication Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China
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Abstract

The detection of hypersonic targets usually confronts range migration(RM)issue before coherent integration(CI).The traditional methods aiming at correcting RM to obtain CI mainly considers the narrow-band radar condition.However,with the increasing requirement of far-range detection,the time band-width product,which is corresponding to radar's mean power,should be promoted in actual application.Thus,the echo signal generates the scale effect(SE)at large time bandwidth product situation,influencing the intra and inter pulse integration perfor-mance.To eliminate SE and correct RM,this paper proposes an effective algorithm,i.e.,scaled location rotation transform(ScLRT).The ScLRT can remove SE to obtain the matching pulse compression(PC)as well as correct RM to complete CI via the location rotation transform,being implemented by seeking the actual rotation angle.Compared to the traditional coherent detection algorithms,ScLRT can address the SE problem to achieve better detection/estimation capabilities.At last,this paper gives several simulations to assess the viability of ScLRT.

Key words

hypersonic target detection/coherent integration(CI)/scale effect(SE)removal/range migration(RM)correction/scaled location rotation transform(ScLRT)

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基金项目

National Natural Science Foundation of China(62101099)

Chinese Postdoctoral Science Foundation(2021M690558)

Chinese Postdoctoral Science Foundation(2022T150100)

Chinese Postdoctoral Science Foundation(2018M633352)

Chinese Postdoctoral Science Foundation(2019T120825)

Young Elite Scientist Sponsorship Program(YESS20200082)

Aeronautical Science Foundation of China(2022Z017080001)

Open Foundation of Science and Technology on Electronic Information Control Laboratory,and the Natural Science Foundation of(2023NSFSC1386)

出版年

2024

系统工程与电子技术(英文版)

中国航天科工防御技术研究院中国宇航学会中国系统工程学会中国系统仿真学会

系统工程与电子技术(英文版)

CSTPCD

影响因子：0.64

ISSN：1004-4132

参考文献量37

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