混合噪声环境下的CDMA抗多址干扰接收机研究

CDMA Anti-MAI Performance in a Mixed Noise Environment

本文针对混合噪声环境,提出了一种抗多址干扰的非相干同步CDMA接收机,并对其系统结构、算法及特性进行了分析。本文提出的变革传统CDMA结构及算法的方法,使得系统具有抗多址干扰能力,从而使系统的容量极大化。

This document introduces the technology of pre-decorrelation and linear single-user detection anti-MAI,because the demodulation sequence of the linear single-user detection anti-MAI CDMA receiver differs from the characteristic sequence, considering that it is hard to trace and estimate the carrier phase in the mixed noise environment ,this document provides the system structure, algorithm and features of the linear single-user detection anti-MAI technology in the differentially coherent synchronous CDMA channel. This document introduces a method that transforms the traditional CDMA structure and algorithm,to equip the system with anti-MAI capability. Thus,the system capacity can be maximized.