By means of the dual evolution, the external and internal ordering technique for the Walsh transform (FWT) was introduced and four kinds of ordering analyzed respectively.
从算法流程图和序码分析两个方面进行外部调序 ,用码位倒置和对偶演化相结合进行内部调序 。
This technique consists of bisection method and dual evolution.
运用二分技术和对偶演化技术设计出数十种内部调序的ＦＦＴ算法，研究表明，数量众多的ＦＦＴ算法同出一