Blind joint angle and delay estimation method in uniform circular array

ZHANG Xiao-fei1; XU Da-zhuan1

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Blind joint angle and delay estimation method in uniform circular array

更新时间：2024-10-14

- Blind joint angle and delay estimation method in uniform circular array
- Issue 12, Pages: 55-60(2006)
- 作者机构：
  
  1. 南京航空航天大学电子工程系
  2. 南京航空航天大学电子工程系江苏南京210016 东南大学移动通信国家重点实验室
  3. ,江苏,南京,210096
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN911.7
- Published：2006
- 稿件说明：
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ZHANG Xiao-fei1, XU Da-zhuan1. Blind joint angle and delay estimation method in uniform circular array[J]. 2006, (12): 55-60.
DOI：

ZHANG Xiao-fei1, XU Da-zhuan1. Blind joint angle and delay estimation method in uniform circular array[J]. 2006, (12): 55-60. DOI：

摘要

提出了均匀圆阵中一种盲联合角度和时延的估计方法(BJADE)。对阵列天线输出的过采样样本的Fourier变换后信号进行分析

表明此信号具有三线性模型特征。该算法先利用三线性交替最小二乘(TALS)算法估计出方向矩阵和时延矩阵

然后利用时延矩阵的Vandermonde特征、基于最小二乘方法进行时延估计;利用方向矩阵结构特点和基于最小二乘方法进行二维角度估计。仿真结果说明BJADE方法具有较好角度和时延估计性能

且在过载情况下仍有较好的性能。该方法无须信道冲激响应

是一种盲、健壮的联合处理方法。

Abstract

A novel blind joint angle and delay estimation method in uniform circular array based on trilinear model was presented. Oversampled signal of array antennas was processed by fast Fourier transform

and showed that the FFTed signal has trilinear model characteristics. A blind joint angle and delay estimation method （BJADE） in uniform circular array was proposed. This method firstly used trilinear alternating least square （TALS） algorithm to estimate the direction and delay matrices

secondly delays were estimated according to Vandermonde characteristics of delay matrix and least square principle

and DOAs were estimated according to characteristics of direction matrix and least square principle. The simulation results reveal that BJADE algorithm has the better estimation performance for delay and DOA

and it works well in the overload system. Finally

this algorithm has blind and robust characteristic

which does not need the channel impulse response.

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