现代雷达2017，Vol.39Issue(8)：22-27,6.DOI:10.16592/j.cnki.1004-7859.2017.08.006
分布式MIMO数字阵列雷达阵元优化配置
Optimizations of Elements Configurations for Distributed MIMO Digital Array Radar
摘要
Abstract
In order to allocate coherent gain and spatial diversity gain reasonably in the distributed multiple input multiple output (MIMO) digital array radar system,the optimizations of its elements configurations are studied.Firstly,the elements configurations are converted to the block partition of target scattering coefficient matrix according to the MIMO radar signal model.Then the likelihood ratio test detector is derived according to the rules that signals from the same sub-block are processed coherently and signals from different sub-block are processed incoherently.Finally,the formulations for optimal elements configurations are given on the bases of maximum detection probability,maximum detection distance and minimum total element number respectively.And the simulation and analysis about optimal elements configurations are also done.The research results show that the system signal-tonoise ratio should be increased to a certain value before the using of space diversity gain;the lost coherent gain caused by separating receiving antenna is less than that caused by separating transmitting antenna;the total element number of the radar system can be minimized by separating two transceiving phased-array antennas when the detection probability is larger than 0.8,or else not necessary to separate antennas.关键词
多输入多输出雷达/统计MIMO雷达/分布式雷达/雷达检测/阵元配置Key words
multiple-input multiple-output (MIMO) radar/statistical MIMO radar/distributed radar/radar detection/elements arrangement分类
信息技术与安全科学引用本文复制引用
费太勇,谭贤四,张堃,王鹏,王红..分布式MIMO数字阵列雷达阵元优化配置[J].现代雷达,2017,39(8):22-27,6.基金项目
国家自然科学基金资助项目(61401504) （61401504）
中国博士后科学基金资助项目(2014M562562) （2014M562562）
