摘要
针对移动通信环境中,多径信号与独立信号共存的混合信号模型DOA估计问题,依据差分方法与时间平滑原理,提出一种改进的DOA算法。该算法增加了可分辨信源个数,同时提高了相干信源DOA估计的性能,仿真实验证明,该算法在混合信号模型下解相干性能优于传统空间平滑法。
An improved DOA algorithm is proposed for the mixed signal model where independent signals and multipath signals coexist in the mobile communication environment based on the differential method and temporal smoothing principle. The algorithm increases the number of signal sources resolved and promotes the DOA estimation performance of coherent signals Simulation results show that the algorithm has better performance in the mixed signal model than the traditional spatial smoothing method.
出处
《电子科技》
2015年第6期162-164,169,共4页
Electronic Science and Technology
关键词
时间平滑
差分
多径信号
移动通信
temporal smoothing
differential
muhipath signals
mobile communication
