脉冲压缩技术已非常成熟,并广泛应用到雷达系统中, 文中不作全面阐述,仅对小时宽带宽积线性调频信号的脉压旁瓣抑制性能进行研究。在综合考虑脉压旁瓣、信噪比损失、主瓣宽度以及多普勒敏感性等因素基础上,用遗传算法对脉压旁瓣抑制性能进行优化,实现超低脉压旁瓣和低信噪比损失。仿真与实验结果表明,优化后的脉压旁瓣具有超低旁瓣特性,完全满足信号处理的要求。

Pulse compression technology is mature,and it is applied to radar system widely, but it isn忆t described in this paper generally. The character of pulse compression sidelobe of small LFM is studied here. Based on sidelobe suppression, SNR loss, mainlode width and doppller sensibility etc, genetic algorithm is used to optimize the performance of sidelobe suppression. Finally realizing ultra low pulse compression sidelobe. The result of simulation and experiment results prove property of ultra low sidelobe,and satisfies the need of signal process completely.