生成可用周期序列的直接法

Direct Method to Derive Usable Cyclic Sequences

提出一种生成可用周期序列的直接方法,采用此法,只要根据一个可用周期序列中元素的位置即可直接生成多个相同周期的可用序列及相应的位置组合,或根据二、三个短周期可用序列即可生成数十个长周期的可用序列,此法对长周期序列尤为适用,效率比以往的方法可提高数十倍。

The direct method is proposed to derive simply a lot of usable sequences with the same cycle from the positions of elements in a usable sequence, as well as the relevant position combinations. Similarly. dozens of usable sequences with the long cycle can be derived from only two or three ones with the same short cycle. The method is particularly suitable for the usability calculation of long cyclic sequences for shared controllers with an efficiency several dozens of times larger than that of the previous method.