摘要
在介绍非线性调频(NLFM)脉压波形设计一般原理的基础上,提出了一种优化设计方法,用该方法设计的NLFM波形具有很低的距离副瓣。开发了一个脉压波形优化设计程序,它具有友好的用户界面,能根据雷达参数很快设计出波形,能给出相应的线性调频(LFM)波形对比,并能分析模拟目标回波经脉压滤波器的处理结果。
The general theory of designing of nonlinear frequency-modulated (NLFM) signals is described. Based on the theory,an optimized design method is proposed. The NLFM signals designed by the method are capable of providing lower range-sidelobes. An optimized design program is developed to design the signals according to the parameter of a radar. The software has good user interface and powerful function. It can design fast the optimized signals and compare them with the linear-frequency-modulated(LFM) signals, and can also analyze the results of the simulated target echo signals passing through a compressed filter.
关键词
雷达
脉冲压缩
线性调频
波形设计
Pulse compression
Nonlinear frequency modulation (NLFM)
Linear frequency modulation(LFM)
Peak side-level(PSLL)
