A fast adaptive beamforming algorithm based on a simple DOA estimation method

A fast adaptive beamforming algorithm based on a simple DOA estimation method
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基于简单DOA估计方法的快速自适应波束形成算法

DOI:
10.1504/ijwmc.2012.047957
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发表时间:
2012-07
影响因子:
--
通讯作者:
Hui Wang
Hui Wang
中科院分区:
--
文献类型:
--
作者:
Ning Xie;Hui Wang

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提出了一种适用于CDMA无线通信的快速自适应波束形成算法。该算法基于阵列方向图综合技术和简单的波达方向(DOA)估计方法。前者是为了最小化所获得的图案和参考图案之间的加权平方误差。后者是对波达方向的粗略估计,计算简单。虽然在DOA估计过程中存在一些微小的误差,该算法提供了一个令人满意的信干噪比性能以及快速的收敛速度与传统的波束形成算法相比,具有较低的复杂度。在各种信号环境下的仿真结果表明了该算法的上级性能。
This paper presents a fast adaptive beamforming algorithm for CDMA wireless communications. The proposed algorithm is based on an array pattern synthesis technique and a simple Direction of Arrival (DOA) estimation method. The former is to minimise the weighted squared errors between the achieved pattern and a reference pattern. The latter is to estimate DOA roughly with simplicity. Although there are some tiny errors during DOA estimation, the proposed algorithm provides a well-satisfied SINR performance as well as a fast convergence rate compared with the conventional beamforming algorithms with a low complexity. Simulation results are presented in various signal environments to show the superior performance of the proposed algorithm.
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