DOA Estimation of Radar Array Signals Based on Blind Source Separation

Target orientation estimation is the premise to achieve target positioning and tracking. The classical DOA estimation algorithm needs to know the array structure and other informations. When those information cannot be obtained accurately, the performance of the algorithm will be degraded or even in...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 2383; no. 1; pp. 12074 - 12079
Main Authors Ding, Y P, She, Y L
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.12.2022
Subjects
Algorithms
Covariance matrix
Physics
Radar arrays
Signal processing
Steering
Tracking
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Summary:Target orientation estimation is the premise to achieve target positioning and tracking. The classical DOA estimation algorithm needs to know the array structure and other informations. When those information cannot be obtained accurately, the performance of the algorithm will be degraded or even invalid. In this paper, a DOA estimation method for array signals based on blind source separation is proposed. The received mixed signals are separated by blind source separation, and the array steering matrix is estimated. Then the signal receiving channel is dimensionally reduced and transformed, and the covariance matrix is reconstructed. Finally use the MUSIC algorithm to achieve DOA estimation. Through simulation experiments, the results show that the method can realize DOA estimation under the condition of unknown array steering matrix, and it is robust.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2383/1/012074