Joint Estimation of DOA and Multipath Time Delay Using the New Space-Time Steering Vector for CDMA System

TIAN Xiao-hua; LIAO Gui-sheng; WANG Hong-yang

您当前的位置：

首页 >

文章列表页 >

Joint Estimation of DOA and Multipath Time Delay Using the New Space-Time Steering Vector for CDMA System

更新时间：2025-07-16

- Joint Estimation of DOA and Multipath Time Delay Using the New Space-Time Steering Vector for CDMA System
- Acta Electronica Sinica Vol. 30, Issue 12, Pages: 1876-1878(2002)
- 作者机构：
  
  西安电子科技大学雷达信号处理重点实验室,陕西,西安,710071
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN914.53
- Published：2002
- 稿件说明：
移动端阅览
TIAN Xiao-hua, LIAO Gui-sheng, WANG Hong-yang. Joint Estimation of DOA and Multipath Time Delay Using the New Space-Time Steering Vector for CDMA System[J]. Acta Electronica Sinica, 2002, 30(12): 1876-1878.
DOI：

TIAN Xiao-hua, LIAO Gui-sheng, WANG Hong-yang. Joint Estimation of DOA and Multipath Time Delay Using the New Space-Time Steering Vector for CDMA System[J]. Acta Electronica Sinica, 2002, 30(12): 1876-1878. DOI：

摘要

本文针对CDMA系统提出了一种不需要训练信号而直接对接收的正常通信信号进行处理

实现感兴趣用户的波达方向(DOA)与多径时延联合估计的新方法.该方法是一种基于空时二维的MUSIC方法

首先建立了一种新的数据结构

并对其形成的相关矩阵进行特征分解

然后采用构造的新导向矢量对特征空间进行搜索.这种方法克服了要求接收信号数小于阵元数的局限

能有效估计时延不同、波达方向相差很小的多径信号的参数.

Abstract

In this paper

based on the space-time two dimensional MUSIC algorithm

a new method utilizing the received information of user instead of pilot signal during the period of normal communication is proposed to estimate DOA and multipath time delay of the signal of interesting (SOI) user in CDMA system.The eigenvalues and eigenvectors of the covariance matrix formed by a new data model is computed first

then the DOA and time delay can be found by searching noise subspace with a new steering vector.It is not required that the number of the received signals be less than that of the array elements.The DOA closed in space (or the same DOA) and multipath time delay of the SOI of different time delay can be estimated.

关键词

Keywords

references

Views

1109

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Effect of Array Elements Spacing on MUSIC Algorithm

A New Spatial Smoothing Algorithm——Random Spatial Gain Method

Approach for Direction of Arrival Estimation with Sensor Gain Uncertainties

A High Resolution Algorithm for 2D-DOA Estimation and Its Fast Implementation in the Presence of SαS Distributed Noise

Distribution of Multipath Time Delay and Doppler Shift for HF Communication on Ionospheric Channels

Related Author

ZHOU Zou

WANG Hong-yuan

GUO Yue

GAO Mei-guo

XUE Feng

YANG Wan-lin

WAN Qun

SUN Qi-fu

Related Institution

Digital Video Technology and Communication Institute,Huazhong University of Science and Technology

Department of Electronics Engineering,Beijing Institute of Technology

Department of Electronics EngineeringBeijing Institute of TechnologyBeijing 100081China

Dept.of Electronic Engineering,University of Electronic Science and Technology

⁰