星载双基地雷达杂波抑制能力分析与构型优选

doi:10.12305/j.issn.1001-506X.2022.02.11

系统工程与电子技术 ›› 2022, Vol. 44 ›› Issue (2): 440-447.doi: 10.12305/j.issn.1001-506X.2022.02.11

星载双基地雷达杂波抑制能力分析与构型优选

何鹏远*, 杨志伟, 谭啸

西安电子科技大学雷达信号处理国家重点实验室, 陕西西安 710071

收稿日期:2020-09-04 出版日期:2022-02-18 发布日期:2022-02-24
通讯作者: 何鹏远
作者简介:何鹏远(1995—), 男, 博士研究生, 主要研究方向为双基地雷达与动目标检测|杨志伟(1980—), 男, 教授, 博士, 主要研究方向为天基预警雷达|谭啸(1997—)男, 博士研究生, 主要研究方向为双基地雷达与动目标检测
基金资助:
国家自然科学基金(62071481);国家自然科学基金青年基金(61801373);上海航天科技创新基金(SAST2018043);上海航天科技创新基金(SAST2019036)

Performance analysis and configuration optimization of clutter repection ability of spaceborne bistatic radar

Pengyuan HE*, Zhiwei YANG, Xiao TAN

National Laboratory of Radar Signal Processing, Xidian University, Xi'an 710071, China

Received:2020-09-04 Online:2022-02-18 Published:2022-02-24
Contact: Pengyuan HE

摘要/Abstract

摘要：

星载双基地雷达具有覆盖范围广、抗隐身, 抗干扰等优势, 在未来具有极大的应用潜力。然而, 由于星载双基系统具有轨道构型差异大、空间尺度异构的特点, 使得双基系统的杂波谱结构在不同的轨道构型下具有较大的差异。本文结合星载双基几何模型, 综合考虑分辨率空变、地形起伏等因素对杂波协方差矩阵的影响, 分析了同轨道高度下的类单基构型与远距双基构型的杂波距离依赖性与自适应处理损失, 并对星载双基构型与观测模式提出了约束要求, 能支撑星载双基雷达的构型优化设计。

关键词: 星载双基地雷达, 轨道构型, 杂波模型, 距离依赖性

Abstract:

Spaceborne bistatic radar has the advantages of wide coverage, anti-stealth, anti-jamming and so on, and has great potential for application in the future. However, due to spaceborne bistatic radar has the characteristics of the large differences in orbital configurations and heterogeneous spatial scales, the clutter spectrum structure of the bistatic radar system is quite different in diverse orbital configurations. In this paper, combined with spaceborne bistatic geometry, consider with topographic relief and resolution space variation and other factors effects on clutter covariance matrix, the clutter distance dependence and adaptive processing loss are analyzed for ana-single based configuration and long distance bistatic configuration under the same altitude orbits, and the spaceborne bistatic orbits configurations and the observation model constraint are proposed to support the optimal design of spaceborne bistatic radar.

Key words: spaceborne bistatic radar, orbital configuration, clutter model, distance dependence

中图分类号:

TN951

何鹏远, 杨志伟, 谭啸. 星载双基地雷达杂波抑制能力分析与构型优选[J]. 系统工程与电子技术, 2022, 44(2): 440-447.

Pengyuan HE, Zhiwei YANG, Xiao TAN. Performance analysis and configuration optimization of clutter repection ability of spaceborne bistatic radar[J]. Systems Engineering and Electronics, 2022, 44(2): 440-447.

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参考文献 18

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参数	星1	星2
轨道高度/km	632	632
轨道倾角/(°)	30	30
近地点幅角/(°)	30	30.04
升交点赤经/(°)	0	0
偏心率	0	0

参数	星1	星2
轨道高度/km	632	632
轨道倾角/(°)	5~60	0
近地点幅角/(°)	10	10
升交点赤经/(°)	0	0
偏心率	0	0

[1]	王跃锟, 李真芳, 张金强, 姬莉. GEO-LEO双站SAR地面分辨特性及轨道构型分析[J]. 系统工程与电子技术, 2017, 39(5): 996-1001.
[2]	刘锦辉, 廖桂生, 王泉. 机载前视阵雷达阵元误差稳健的空时插值补偿方法[J]. 系统工程与电子技术, 2014, 36(12): 2388-2392.
[3]	文珺，史林，廖桂生. 一种机载非正侧视阵雷达近程杂波对消方法[J]. 系统工程与电子技术, 2013, 35(10): 2069-2073.
[4]	张西川, 张永顺，谢文冲，王永良，张增辉. 波形正交性退化下机载MIMO雷达杂波模型与自由度分析[J]. Journal of Systems Engineering and Electronics, 2012, 34(1): 80-84.
[5]	岳兵, 李明, 廖桂生. 基于空时插值的机载雷达杂波距离依赖性补偿方法[J]. Journal of Systems Engineering and Electronics, 2010, 32(8): 1557-1561.

星载双基地雷达杂波抑制能力分析与构型优选

Performance analysis and configuration optimization of clutter repection ability of spaceborne bistatic radar

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