摘要
研究非线性调频信号波形设计方法 .依据相位逗留原理 ,采用动态优选法 ,给出了一种改进的非线性调频信号波形设计方法 .该方法可以根据脉冲压缩输出波形峰值主副比或者主瓣宽度的具体要求设计出更加实用的非线性调频信号波形 .增加了波形设计的灵活性 ,运算量小 ,设计速度快 .采用该方法设计的波形脉压输出主副比低 .设计算例结果表明了该方法的有效性 .
To study the method of designing nonlinear frequency modulation (NLFM) signal waveform, the dynamic selection method was adopted on the basis of phase stationary theory. The more applicable NLFM signal waveform could be designed with this method according to the concrete requirements of peak sidelobe level and mainlobe width of the output waveform of the pulse compression system, and the flexibility of waveform designing was increased, and operating times was decreased. The NLFM designed with this modified method has low peak sidelobe level. Some designing examples were shown. The validity of this modified method is confirmed by simulation results.
出处
《北京理工大学学报》
EI
CAS
CSCD
2000年第3期352-355,共4页
Transactions of Beijing Institute of Technology
关键词
脉冲压缩
非线性调频信号
雷达
设计
雷达
PSL
pulse compression
nonlinear frequency modulation signal
peak sidelobe level
phase stationary theory
group delay
