摘要
提出了一种直扩码分多址通信系统的接收信号模型,并在该模型的基础上推导出一种适用于直扩码分多址系统的盲波束成形算法.算法利用期望用户的扩频序列与接收信号的信号子空间的关系,得到波束成形器的系数.该算法突破了传统的基于子空间算法固有的缺陷,其性能优于一般的盲波束成形算法.
A receiver model is developed on a direct-spread code-division multiple-access system, and a blind beamforming algorithm is proposed based on the model. The relationship of the subspace of the received signal and the spreading code of the desired user is used to get coefficient of beamformer. Simulations have demonstrated that the algorithm performs better than other blind beamforming algorithms.
出处
《北京邮电大学学报》
EI
CAS
CSCD
北大核心
2004年第1期50-54,共5页
Journal of Beijing University of Posts and Telecommunications
基金
国家自然科学基金项目(60172051)
国家"863计划"项目(2001AA123016)
