基于ZF码辅助的DSSS系统NBI抑制技术研究

his paper analyzed NBI rejection in the direct-sequence spread spectrum systems of complex channel circumstance based on code-aided techniques. The performance of decoding was badly affected based on general code-aided techniques because of the phase of complex gain accounting for channel effects. The system based on modified code-aided techniques can cancellate or relieve the effects but attend by high computational complexity. So this paper designed a new optimal restrictive code-aided technique to solve this problem without increase of the computational complexity. The conclusion was approved by experiments.