论文部分内容阅读
本文对后面串接 FFT 多卜勒滤波器组的 MIT 滤波器,考虑其瞬态响应以后,计算了它对地物杂波抑制的有效性。对 MTI 滤波器,考虑了递归与非递归两种形式。这种分析方法可以扩展到使地物杂波产生折迭的高脉冲重复频率(pRE)的情况。本之给出的结果可用于选择关健的设计参数,包括 MTI 滤波器,窗孔大小、要抛弃的起始瞬态段的长短等。最后给出了数字实例。
In this paper, the MIT filter connected to the rear of the FFT Doppler filter bank is considered. After considering the transient response, the effectiveness of clutter suppression is calculated. For MTI filters, both recursion and non-recursion are considered. This method of analysis can be extended to the case of clutter artifacts producing a high pulse repetition frequency (pRE). The results presented here can be used to select key design parameters, including MTI filters, window size, length of initial transient segments to be discarded, and the like. Finally, a numerical example is given.