通过对输入信号阈值分解,本文研究了基于层叠处理的秩排序统计滤波器理论。证明了对多值信号的任意秩排序统计滤波,均可通过阈值分解转化为对二值信号的层叠处理。由此实现的滤波器易于并行处理和VLSI实现,大大提高了滤波速度 By decomposing the input signal threshold, this paper studies the rank-order statistical filter theory based on cascade processing. It is proved that any order rank statistical filtering of multi-valued signals can be converted into a cascade of binary signals by threshold decomposition. The resulting filter is easy to parallelize and VLSI implementation, greatly improving the filtering speed