Spreading sequences design is one of the key task in the direct-sequence spread spectrum communication systems.
扩频序列设计是直接序列扩频通信系统的关键课题之一。
2
In order to generate the optimal spreading sequences for asynchronous DS-CDMA, some optimizing criteria for selecting chaotic binary sequence were proposed.
为了获得异步ds - CD MA系统的最优扩谱序列，给出了一套用来选取混沌二值序列的优化准则。
3
A communicator USES BPSK direct - sequence (DS) spreading modulation and BPSK data modulation.