| Improved DOA Estimation Algorithm with Sensor Array Perturbations for CDMA System |
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| 作者姓名： | 杨维 程时昕 |
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| 作者单位： | [1]SchoolofElectronicsandInformationEngineering,NorthermJiaotongUniversity,Beijing100044,China [2]NationalMobileCommunicationsResearchLaboratory,SoutheastUniversity,Nanjiang210096,Jiangsu,C |
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| 基金项目： | SupportedbyOpenFoundationfromNationalMobileCommunications ResearchLaboratory，SoutheastUniversity(No.1 0 5) . |
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| 摘 要： | An improved direction of arrival (DOA) estimation algorithm with sensor gain and phase uncerlatinties for synchronous code divison multiple access(CDMA) system with decorrelator is presented,Through decorrelating processing DOAs of the desired users cna be estimated independently and all other resolved signal interferences are eliminated,Emphasis is directed to applications in which sensor gain and phase are pertubed that often happen actually, It is shown that improved DOA estimation can be achieved for decoupled signals by gain and phase pre-estimation procedures.
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| 关 键 词： | CDMA系统 改良DOA估计算法 天线阵 扰动 |
Improved DOA Estimation Algorithm with Sensor Array Perturbations for CDMA System |
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| YANG Wei ,CHENG Shi xin.Improved DOA Estimation Algorithm with Sensor Array Perturbations for CDMA System[J].Transactions of Tianjin University,2003,9(1):11-15. |
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| Authors: | YANG Wei CHENG Shi xin |
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| Institution: | 1. School of Electronics and Information Engineering, Northern Jiaotong University, Beijing 100044,China
2. National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, Jiangsu, China |
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| Abstract: | An improved direction of arrival (DOA) estimation algorithm with sensor gain and phase uncertainties for synchronous code division multiple access(CDMA) system with decorrelator is presented. Through decorrelating processing DOAs of the desired users can be estimated independently and all other resolved signal interferences are eliminated. Emphasis is directed to applications in which sensor gain and phase are perturbed that often happen actually. It is shown that improved DOA estimation can be achieved for decoupled signals by gain and phase pre estimation procedures. |
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| Keywords: | antenna array CDMA DOA estimation perturbations |
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