基于多目标稳健STAP的集中式MIMO雷达波形设计

doi:10.12305/j.issn.1001-506X.2025.02.11

Abstract

Abstract:

To solve the optimal transmit waveform design problem in co-located multiple-input multiple-output (MIMO) radar multi-target space-time adaptive signal processing (STAP), the transmit waveform and receive filter are jointly optimized by maximizing the worst output target signal-to-interference plus noise ratio (SINR) as the optimization criterion. In terms of model, other targets are considered as coherent interference. In terms of algorithm, to meet the rank 1 constraint for the covariance matrix of the output waveform associated with the semi-definite programming (SDP) algorithm, a solution based matrix rank 1 approximation and rank decreasing is proposed. On this basis, two iterative alternating optimization algorithms are designed and their performances are compared. The simulation result shows that the optimal transimit waveform can meet the peak-to-average ratio (PAR) constraint and the similarity constraint, with robust multi-target space-time clutter suppression capabilities.

Key words: multi-target, robust space-time adaptive signal processing (STAP), co-located multiple-input multiple-output (MIMO) radar, waveform design, reduced rank

CLC Number:

TN958

Yunlei ZHANG, Liguo LIU, Pei PENG, Tingli SHEN, Houpu LI. Co-located MIMO radar waveform design based on multi-target robust STAP[J]. Systems Engineering and Electronics, 2025, 47(2): 442-450.

Figures/Tables 6

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Table 1

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References 24

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约束条件	RD-BS-CA		RD-SAS-CA
约束条件	最差 SINR/dB	运行总时间/s	最差 SINR/dB	运行总时间/s
γ=1, δ=0.1e_t	9.5	481	9.8	338
γ=1, δ=0.5e_t	12.0	847	12.4	507
γ=1.5, δ=0.5e_t	12.6	536	13.5	429
δ=2e_t	13.6	333	14.0	336

杂波功率/dB	目标归一化多普勒f_{d, t}	RD-BS-CA输出结果/dB	RD-SAS-CA输出结果/dB
20	0.1	8.40	8.67
	0.2	8.18	9.18
	0.3	0.47	0.47
30	0.1	6.73	6.99
	0.2	8.50	8.97
	0.3	0.45	0.46

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Co-located MIMO radar waveform design based on multi-target robust STAP

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