Optimal Configuration of Array Elements for Hybrid Distributed PA-MIMO Radar System Based on Target Detection

被引：3

作者：

Qi, Cheng ^{[1
]}

Xie, Junwei ^{[1
]}

Zhang, Haowei ^{[1
]}

Ding, Zihang ^{[1
]}

Yang, Xiao ^{[1
]}

机构：

[1] Air Force Engn Univ, Air & Missile Def Coll, Xian 710051, Peoples R China

来源：

REMOTE SENSING | 2022年 / 14卷 / 17期

基金：

中国国家自然科学基金;

关键词：

radar resource optimization; target detection; array element configuration; PA-MIMO radar; PHASED-ARRAY; PLACEMENT; OPTIMIZATION; ALLOCATION; TRACKING; DESIGN;

D O I：

10.3390/rs14174129

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This paper establishes a hybrid distributed phased array multiple-input multiple-output (PA-MIMO) radar system model to improve the target detection performance by combining coherent processing gain and spatial diversity gain. First, the radar system signal model and array space configuration model for the PA-MIMO radar are established. Then, a novel likelihood ratio test (LRT) detector is derived based on the Neyman-Pearson (NP) criterion in a fixed noise background. It can jointly optimize the coherent processing gain and spatial diversity gain of the system by implementing subarray level and array element level optimal configuration at both receiver and transmitter ends in a uniform blocking manner. On this basis, three typical optimization problems are discussed from three aspects, i.e., the detection probability, the effective radar range, and the radar system equipment volume. The approximate closed-form solutions of them are constructed and solved by the proposed quantum particle swarm optimization-based stochastic rounding (SR-QPSO) algorithm. Through the simulations, it is verified that the proposed optimal configuration of the hybrid distributed PA-MIMO radar system offers substantial improvements compared to the other typical radar systems, detection probability of 0.98, and an effective range of 1166.3 km, which significantly improves the detection performance.

引用

页数：20

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