机载相控阵雷达波束多普勒域部分自适应处理方法研究  

Research on Partially Space-Time Adaptive Processing Approaches in Beam-Doppler Domain for Airborne Phased Array Radar

作　　者：陈建文[1] 王永良[2] 陈辉[2] 

机构地区：[1]南京电子技术研究所,江苏南京210013 [2]空军雷达学院雷达兵器运用工程重点实验室,湖北武汉430010

出　　处：《电子学报》2001年第z1期1932-1935,共4页Acta Electronica Sinica

基　　金：高等学校优秀青年教师教学科研奖励计划 (TRAPOYT)资助 (No .)

摘　　要：本文研究了机载相控阵雷达波束 多普勒域部分自适应处理系统的几种降维处理方法 ,主要包括辅助通道法 (ACR)、局域联合处理方法 (JDL)和空时相邻多波束法 (STMB) ,并从改善因子性能、自适应权、空时二维频响方面 ,讨论了几种可能有效的波束位置选择方案的合理性 .理论分析与计算机仿真表明 ,空时相邻多波束法具有较低的系统自由度、优良的性能和很强的误差鲁棒性 。This paper studies several reduced rank partially space time adaptive processing (STAP) approaches in beam Doppler domain for airborne phased array radar,which includes the Auxiliary Channel Receiver (ACR),the Joint Domain Localized (JDL) approach and the Space Time Multiple Beam (STMB) approach.A comparative analysis is performed.Several selections of beam number and position are also investigated in detail based on improvement factor,adaptive weights and space time two dimensional response characteristics.Theoretical analysis and computer simulation further illustrate that the STMB approach has very low system degrees of freedom (DOFs) and good performance.It is robust to array element error and nonhomogeneous clutter,and therefore feasible and available for airborne phased array radar applications in nonhomogeneous clutter environments.

关 键 词：机载相控阵雷达 杂波抑制 空时自适应处理 

分 类 号：TN957.51[电子电信—信号与信息处理] TN959.73[电子电信—信息与通信工程]