雷达动目标显示对消器性能分析  

Performance analysis of radar moving target display canceller

作　　者：李振兴 王康 郑林 谭宏星 LI Zhenxing;WANG Kang;ZHENG Lin;TAN Hongxing(Unit 63889 of the PLA,Mengzhou 454750,China)

机构地区：[1]63889部队,河南孟州454750

出　　处：《雷达与对抗》2024年第1期26-30,共5页Radar & ECM

摘　　要：基于动目标显示对消器模型,着重分析递归三次对消器前馈和反馈支路参数对动目标显示性能的影响;仿真对比不同对消器系数对凹口宽度、通带平坦度和改善因子等性能的影响;结合仿真实验进行验证。仿真结果表明递归三次对消器能够获得更优的通带平坦度,有利于提高待检测信号的信噪比。Based on the moving target display(MTD)canceller model,the impact of the feedforward and feedback branch parameters of the recursive cubic canceller on the MTD performance is emphatically analyzed,and the effects of different canceller coefficients on the notch width,passband flatness,and improvement factor are simulated and compared.The simulation test is conducted to verify the effectiveness of the performance analysis,and the results show that the recursive cubic canceller can obtain better passband flatness,which is beneficial to improve the SNR of the signals to be detected.

关 键 词：MTI 固定地杂波 反馈支路 通带平坦度 改善因子 

分 类 号：TN972.1[电子电信—信号与信息处理]