A new method to estimate DOA in CDMA system in multi-path environment

被引：0

作者：

单志勇 ^{[1
]}

周希朗 ^{[2
]}

张琪 ^{[2
]}

机构：

[1] College of Information Science and Technology, Donghua University,Shanghai 200051, China,Department of Electronic Engineering, Shanghai Jiaotong University, Shanghai 200030,China

[2] Department of Electronic Engineering,Shanghai Jiaotong University, Shanghai 200030,China

来源：

Journal of Central South University | 2006年 / 03期

关键词：

DOA; CDMA; multi-path; code-matched filter;

D O I：

暂无

中图分类号：

TN929.533 [码分多址（CDMA）移动通信];

学科分类号：

080402 ; 080904 ; 0810 ; 081001 ;

摘要：

An algorithm for direction angle of arrival(DOA) estimation and array calibration of signals from multiple mobile users in the CDMA systems and multi-path environment was presented . The main idea is that the algorithm employs code-matched filter and model of the inter-symbol interference and multiple-access interference exactly. The correlation matrices of the received signals before and after code-matched filtering were employed to eliminate the effect of the additive white Gaussian noise, and a new mathematical problem was created, a new maximum likelihood method based on the strong law of large number was derived for DOA estimation and array calibration. Computer simulation results prove that the algorithm is effective.

引用

页码：270 / 274

页数：5