随机噪声连续波SAR的性能分析  

Performance analysis of random noise CW SAR

作　　者：高许岗[1] 苏卫民[1] 顾红[1] 

机构地区：[1]南京理工大学电子工程与光电技术学院,江苏南京210094

出　　处：《电波科学学报》2010年第1期47-52,共6页Chinese Journal of Radio Science

基　　金：国家自然基金(No.60672075);国家部委基金(No.9140A07010809BQ0205)

摘　　要：随机噪声连续波合成孔径雷达具有十分优良的低截获特性、抗干扰特性和电磁兼容性等,因此受到越来越广泛的关注。介绍了一种功率谱为高斯型的随机噪声连续波SAR的信号形式。通过理论分析和计算机仿真,给出了这种信号的距离分辨率、距离向峰值旁瓣比、积分旁瓣比及抗干扰等性能。仿真结果表明:在相同的条件下,这种随机噪声连续波SAR比LFMCW SAR具有更低的峰值旁瓣比、更好的距离分辨能力和抗干扰性能。There has been considerable interest in random noise continuous wave SAR for low probability of interception,good electronic counter-countermeasure capability(ECCC) and good electronmagnetic compability. The random noise CW signal with the Gaussian shaped power spectra is analyzed. Through the theoretical analysis and computer simulation ,the range resolution,the statistical peak sidelobe ratio (PSLR) and integrated sidelobe ratio (ISLR) and ECCC are presented for random noise CW SAR. The simulation result ...

关 键 词：随机噪声连续波 线性调频连续波 峰值旁瓣比 距离分辨率 

分 类 号：TN958[电子电信—信号与信息处理]