海杂波背景下自适应脉冲压缩的性能与分析  

Performance Analysis of Adaptive Pulse Compression in Sea Clutter

作　　者：孟藏珍[1] 袁俊泉[2] 徐向东[2] 

机构地区：[1]空军雷达学院研管大队,湖北武汉430019 [2]空军雷达学院信息与指挥自动化系,湖北武汉430019

出　　处：《雷达科学与技术》2006年第5期305-308,共4页Radar Science and Technology

摘　　要：针对经典脉冲压缩匹配滤波器距离旁瓣高、不利于检测邻近距离小目标的局限性,文献[2]和[3]提出了自适应脉冲压缩方法,在高斯背景下对P3取得了良好的压缩效果。但其多普勒容限性能差,且杂波环境简单。在此基础上,该文采用相位编码脉内线性调频信号,分析了海杂波背景下自适应脉冲压缩方法的性能,进行了仿真。仿真结果表明,在海杂波背景下,该方法具有距离旁瓣低、多普勒容限大、能检测多目标等优点。With regard to the shortcoming that the sidelobe of matched filter for the classical pulse compression is high and influences the detection of small targets in adjacent ranges, the papers [2] and [3] proposed adaptive pulse compression and analyzed its performance for p3-coded signal in Gauss background. But its doppler tolerance is small and the clutter background for simulation is assumed to be ideal. Accordingly, this paper analyzes the performance of adaptive pulse compression for phase-coded signal modulated by LFM in pulse in sea clutters. The simulation results show that the adaptive method for pulse compression can get low range sidelobe, big doppler tolerance and detection ability for many targets.

关 键 词：脉冲压缩 递归最小均方误差算法 匹配滤波 相位编码脉内线性调频信号 K分布海杂波 

分 类 号：TN957.51[电子电信—信号与信息处理]