舰船电子对抗

相位编码信号具有优良的抗干扰和低截获概率特性,在雷达波形产生中广泛使用。给出了相位编码信号的时域和频域特点,运用模糊函数对该信号的性能进行分析,发现该信号具有高的距离、速度分辨率,分析了此类信号经匹配滤波压缩处理的过程和结果,对大时宽带宽积相位编码信号的时域副瓣抑制滤波器设计问题进行了探讨,给出了其工程实现方法。

Owing to its good anti-jamming capability and the property of low probability of intercept,the phase-coding signal is widely applied in radar waveform generation.This paper gives out the characteristics of phase-coding signal in time-domain and frequency-domain,analyzes the signal characteristics by means of the fuzzy function and finds that the signal has high resolution of the distance and the velocity,analyzes the process and result of this kind of signal being matched filtering compressed,discusses the design of the time-domain side-lobe suppression filter adopting phase-coding signal with large time-band width product,and provides the engineering realization method.