【摘要】 由于雷达接收到的运动杂波具有多普勒中心频率及带宽时变的特性 ,利用辅助参数搜索通道 ,本文结出准实时估计杂波抑制滤波器准最佳参数的距离分段杂波抑制方法 ;并结合常用的二阶复数滤波器幅频特性及其对于正交双通道输入的时域实现方法说明其工作原理 ,概述了在工程应用中目标保护、距离分段、凹口间隔选择及快速搜索等几个关键问题及其解决方法更多还原

【Abstract】 The dynamic clutter received by radar has a Doppler central frequency and time varying bandwidth. A method of distance divided clutter suppression is introduced in this paper which utilizes an assistant channel of parameters searching to get a quasi real time estimation of the quasi optimal parameters of clutter suppression filter. Based on the amplitude frequency property of normally used second order complex filter and its actualization of inputs from two quadrature channels, the working principle of this method is introduced. Finally several key problems in practical engineering such as target protection, destance dividing, the notch interval choosing and fast searching are discussed and their solution are proposed.更多还原