DOA Estimation for Far-Field Sources in Mixed Signals with Gain-Phase Error Array

Conference paper
Part of the Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering book series (LNICST, volume 237)

Abstract

Most of the super-resolution direction finding algorithms often require the accurate array manifold, but the gain-phase of the channels is often inconsistent in practical applications, which will lead to the estimation performance deterioration. Therefore, a new method for direction of arrival (DOA) estimation of far-field sources in mixed far-field and near-field signals with gain-phase error array is presented. First, fast Fourier transformation (FFT) is performed on the received data, then matrix transformation is used for simplifying the spectrum function, at last, DOA of far-field signals can be acquired by finding the roots of corresponding polynomial. There is no need to calibrate the array, simulations have shown that the proposed algorithm is effective.

Keywords

Direction of arrival Gain-phase error Far-field signals Near-field signals Wideband signals 

Notes

Acknowledgments

I would like to thank Heilongjiang province ordinary college electronic engineering laboratory and post doctoral mobile stations of Heilongjiang University.

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Copyright information

© ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2018

Authors and Affiliations

  1. 1.College of Electronic EngineeringHeilongjiang UniversityHarbinChina

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