摘要
在直接序列扩频码分多址(DS-CDMA) 通信系统中, R AKE接收机是一种传统的接收机结构, 其主要缺点是抗远近效应的能力较差。文章引入一种新的信号处理技术———独立分量分析, 对RAKE接收机的估计信号进行二次调整。实验表明, 这种调整结构有很好的抗干扰能力, 可以显著提高信号估计的正确率。
In Direct-Sequence Code Division Multiple Access (DS_CDMA) communications systems,RAKE receiver is a conventional structure. The disadvantage of this structure is inefficacious for near-far resistant .In this paper, a new signal processing technique called independent component analysis(I CA) is introduced,and it is used to adjust to the signals that RAKE recerver have estimated.Simulation shows that this adjustment can improve the capability of interference suppression and correct rate of signals estimate.
出处
《计算机测量与控制》
CSCD
2005年第4期380-382,共3页
Computer Measurement &Control
