一种简单的基于开关波束天线的相邻方向图功率比DoA估计方法

2010 International Conference on Wireless Communications & Signal Processing (WCSP) Pub Date : 2010-11-11 DOI:10.1109/WCSP.2010.5633543

Y. Ozaki, Jun Ozawa, Eddy Taillefer, Jun Cheng, Y. Watanabe

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引用次数: 14

摘要

提出了一种基于开关波束天线的简单DoA估计方法。该估计器采用相邻模式功率比算法实现。对于单一源信号，当天线在一组测量的定向波束模式上切换时，测量接收到的信号功率。选择显示最大接收信号功率的模式。然后，使用与所选模式相邻的模式与所选模式之间的比率，通过使用查找表或执行线性回归近似来查找DoA。与传统的开关波束天线DoA估计方法相比，该算法在不牺牲估计精度的前提下，计算成本低。利用电子操纵寄生阵列辐射器(ESPAR)天线进行了计算机仿真和暗室实验，验证了该算法的有效性。

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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A simple DoA estimator using adjacent pattern power ratio with switched beam antenna

A simple DoA estimator is proposed with a switched beam antenna. The estimator is implemented with an adjacent pattern power ratio algorithm. For a single source signal, the received signal powers are measured while the antenna switches over a set of measured directive beam patterns. The pattern that exhibits the maximum received signal power is chosen. Then, the ratio between the pattern adjacent to the chosen pattern and the chosen pattern, is used to find the DoA by using a lookup table or by performing a linear regression approximation. Compared with conventional DoA estimators with switched beam antenna, the proposed algorithm allows DoA estimation with low computational cost, without sacrificing much the estimation precision. Computer simulations and experiments in an anechoic chamber are carried out to verify the proposed algorithm with a switched beam antenna: the electronically steerable parasitic array radiator (ESPAR) antenna.

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来源期刊

2010 International Conference on Wireless Communications & Signal Processing (WCSP)

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