Blind Space-Time Channel Estimation for CDMA with Aperiodic Spreading Code

JIANG Bo-feng; FENG Ai-gang; YIN Qin-ye

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Blind Space-Time Channel Estimation for CDMA with Aperiodic Spreading Code

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- Blind Space-Time Channel Estimation for CDMA with Aperiodic Spreading Code
- Acta Electronica Sinica Vol. 29, Issue 6, Pages: 778-781(2001)
- 作者机构：
  
  西安交通大学电信学院信息工程研究所,陕西,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN929.5
- Published：2001
- 稿件说明：
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JIANG Bo-feng, FENG Ai-gang, YIN Qin-ye. Blind Space-Time Channel Estimation for CDMA with Aperiodic Spreading Code[J]. Acta Electronica Sinica, 2001, 29(6): 778-781.
DOI：

JIANG Bo-feng, FENG Ai-gang, YIN Qin-ye. Blind Space-Time Channel Estimation for CDMA with Aperiodic Spreading Code[J]. Acta Electronica Sinica, 2001, 29(6): 778-781. DOI：

摘要

时空信道可以用矢量信道冲激响应(VCIR)来描述

正确估计VCIR是智能天线系统实现的关键技术.本文从多用户解相关的思想出发

利用子空间技术实现了非周期扩频的CDMA系统时空信道的盲估计

所给出的时空信道估计方法具有抗远近效应的能力.计算机仿真实验表明

时空信道的估计精度完全可以满足DOA与相对时延信息提取的要求.

Abstract

Space-time channel can be described by vector channel impulse response (VCIR).Estimation of the VCIR is very important for Smart Antenna Systems.In this paper

based on multi-user decorrelation

a blind VCIR estimation method for CDMA with aperiodic spreading code is proposed.The new method has the ability to resist near-far effect.Computer simulation demonstrates that the accuracy of the VCIR estimated by the new method can meet the need to extract DOA and time delay information.

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