多载频相位编码雷达信号分析  

Analysis on Multi-carrier-frequency Phase-coded Radar Signal

作　　者：胡朗[1] 薛广然 杜自成[1] 

机构地区：[1]西安电子工程研究所,西安710100

出　　处：《火控雷达技术》2015年第2期65-68,共4页Fire Control Radar Technology

摘　　要：由于多载频信号在高分辨率,低截获等方面的优势以及适应未来雷达多功能的要求,近年来备受关注。针对多载频相位编码信号,以模糊函数为工具,对其与单载频相位编码信号进行了比较,证明其具有更佳的雷达探测性能。针对直接匹配滤波运算量较大的问题,提出先对子载频相位编码序列匹配滤波,再通过子带合成完成二级脉压的信号处理方式。仿真分析证明,该方式可获得与直接匹配滤波相近的效果。The multi-carrier-frequency signal （ MCPC） has attracted much more attentions recently since its advan-tageous in high resolution and low probability of interception and suitable for meeting multifunction requirement for future radar. By taking ambiguity function as a tool, a comparison between multi-carrier-frequency and single-carri-er-frequency phase-coded signals shows that the multi-carrier-frequency phase-coded signal has a better performance in radar detection. To deal with the problem of larger operand of directly matched filtering, a signal processing method of firstly performing matched filtering for sub-carrier-frequency phase-coded sequence, and then implemen-ting two-stage pulse compression via subcarrier-frequency band synthesizing is presented. The simulation analysis shows that using this method can get effect similar to that of using direct matched filtering.

关 键 词：多载频 相位编码 MCPC 匹配滤波 二级脉压 

分 类 号：TN957[电子电信—信号与信息处理]