A DOA Estimation Method Based on Biomimetic Pattern Recognition and PCA/ICA

AN Dong; WANG Shou-jue

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A DOA Estimation Method Based on Biomimetic Pattern Recognition and PCA/ICA

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- A DOA Estimation Method Based on Biomimetic Pattern Recognition and PCA/ICA
- Acta Electronica Sinica Vol. 32, Issue 9, Pages: 1448-1451(2004)
- 作者机构：
  
  中国科学院半导体研究所神经网络实验室,北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC： TNTP391.4
- Published Online：25 September 2004，
  
  Published：2004
- 稿件说明：
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AN Dong, WANG Shou-jue. A DOA Estimation Method Based on Biomimetic Pattern Recognition and PCA/ICA[J]. Acta Electronica Sinica, 2004, 32(9): 1448-1451.
DOI：

AN Dong, WANG Shou-jue. A DOA Estimation Method Based on Biomimetic Pattern Recognition and PCA/ICA[J]. Acta Electronica Sinica, 2004, 32(9): 1448-1451. DOI：

摘要

本文提出了一种基于仿生模式识别和PCA/ICA的DOA估计方法.这种方法的建模过程是用在实际环境下采集的训练样本构造人工神经网络模型

对环境的适应能力较强;且这种方法采用PCA/ICA进行特征提取

使数据得到有效压缩

可以实现系统实时处理.实验结果表明:在信噪比为20dB和0dB时

该方法的正确估计率可达100%;在信噪比降为-20dB时

该方法仍有83%的可识别率.

Abstract

The applicability of biomimetic pattern recognition to information processing of abstract objects is studied

and then a DOA estimation method based on biomimetic pattern recognition and PCA/ICA is advanced.In this method

the output signals of antenna array are collected in practical conditions and expressed as feature vectors by using PCA/ICA.These feature vectors are studied with the method of high dimensional geometry and the principle of biomimetic pattern recognition.By using the feature vectors as training samples ANN models are constructed.In our experiments

when SNR is 20dB or 0dB

the correct estimation rate is 100%;when SNR is -20dB

the correct estimation rate is 83%;The experimental results show that the proposed method has the great advantage of preferable robustness and fast computation.

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