载波漂移下长码CDMA的阵列波束形成

GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489) Pub Date : 2003-12-01 DOI:10.1109/GLOCOM.2003.1258617

T. A. Drumright, Amir Ali Tabarrok, Z. Ding

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引用次数: 0

摘要

提出了一种用于检测存在未知载波漂移的非周期CDMA信号的盲阵波束形成方法。该方法采用差分阵列波束形成算法(DABA)，利用已知的目标用户的扩频码估计载波漂移下的信号子空间。成功的波束形成可以在检测用户数据符号之前更好地估计载波漂移。为了将该方法与现有的子空间技术以及两种基线(韦纳滤波器和单元素匹配滤波器)检测器进行比较，进行了仿真。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Array beamforming for long code CDMA under carrier drift

We present a blind array beamforming method for the detection of aperiodic CDMA signals in the presence of an unknown carrier drift. This method employs a differential array beamforming algorithm (DABA), which utilizes the known spreading code of the desired user to estimate the signal subspace under carrier drift. Successful beamforming enables better carrier drift estimation before detecting user data symbols. Simulations are performed in order to compare this method with an existing subspace technique, as well as two baseline (Weiner filter and single element matched filter) detectors.

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来源期刊

GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489)

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