基于极化阵列雷达的信号模型及目标检测性能分析

Signal Model and Target Detection Performance Analysis Based on Polarization Array Radar

极化阵列雷达可以对电磁波的极化信息进行提取和利用,从而提高目标检测、目标识别等能力。基于多种不同类型的极化阵列雷达系统,针对目标检测性能进行了分析。首先,建立了极化阵列雷达的统一信号模型。然后,对比了单一极化相控阵雷达、全极化阵列雷达和子阵交叉极化雷达的回波信号,并分析了各种阵列在不同信噪比下的目标检测性能;最后,结合仿真试验,总结了不同类型极化阵列雷达的特点。

By extracting and using the polarization information of the electromagnetic waves,the target detection and identification ability of polarization array radar is improved.Based on different type polarization array radar systems,the target detection performance are analyzed.Firstly,the unified signal model of the polarization array radar is build.Then,the target echo signal expression of single polarization phased array radar,fully polarization array radar and subarray cross polarization array radar are compared with each other.The target detection performance of different types of polarization radar systems are analyzed.Finally,simulation result is given and the characteristic of different type polarization array radar systems is summarized.