一种雷达脉内常规脉冲信号频率快速计算算法

频率是雷达脉内信号的主要特征参数,也是影响雷达识别的关键参数之一。过零判别检测法是一种简单实用的脉内常规脉冲信号频率快速计算方法,但受噪声影响较大,限制了该方法在精确分析中的应用。针对现有技术在实际应用中过零点辨别困难的问题,提出了一种基于一元线性回归分析、对噪声及干扰抑制能力强并能有效提高脉内常规脉冲信号频率准确度的脉内常规脉冲信号频率计算方法。

A Fast Calculation Method to The Frequency of Radar Pulse-in Conventional Pulse Signal

Frequency is the main characteristic parameter of radar pulse-in signal,and is one of key parameters that influence radar recognition.Zero-crossing recognition detection method is a simple and practical fast calculation method to the frequency of pulse-in conventional pulse signal,but it is influenced by noise greatly,which restricts its application to accuracy analysis.Aiming at the problem that existing technique difficultly performs the zero-crossing recognition in practical application,this paper presents a frequency calculation method of pulse-in conventional pulse signal based on mono-linear regression analysis,and the method has strong restrain capability to noise and jamming,as well as can raise the frequency accuracy of pulse-in conventional pulse signal effectively.