A NEW DOA ESTIMATOR BASED ON BEAM OUTPUT

Chen Jianfeng; Huang Jianguo; Zhang Qunfei

Volume 21 Issue 5

Sep. 1999

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Chen Jianfeng, Huang Jianguo, Zhang Qunfei . A NEW DOA ESTIMATOR BASED ON BEAM OUTPUT[J]. Journal of Electronics & Information Technology, 1999, 21(5): 600-605.

Citation:

Chen Jianfeng, Huang Jianguo, Zhang Qunfei . A NEW DOA ESTIMATOR BASED ON BEAM OUTPUT[J]. Journal of Electronics & Information Technology, 1999, 21(5): 600-605.

Chen Jianfeng, Huang Jianguo, Zhang Qunfei . A NEW DOA ESTIMATOR BASED ON BEAM OUTPUT[J]. Journal of Electronics & Information Technology, 1999, 21(5): 600-605.

Citation:

Chen Jianfeng, Huang Jianguo, Zhang Qunfei . A NEW DOA ESTIMATOR BASED ON BEAM OUTPUT[J]. Journal of Electronics & Information Technology, 1999, 21(5): 600-605.

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A NEW DOA ESTIMATOR BASED ON BEAM OUTPUT

Received Date: 1998-03-24
Rev Recd Date: 1998-10-25
Publish Date: 1999-09-19

Abstract

Abstract

A new DOA estimator based on beam output is presented in this paper. It uses subarray to form beam and regards these subarrays as equivalent sensors. So a new array is generated. Employing original high-resolution DOA estimators, such as MUSIC, on the new array, DOAs are then obtained. Monte Carlo test and underwater high-resolution array processing experiment are made on linear equipspaced array (LEA) to check the performance of the new method. It is shown from the result of tests that the new method possesses some advantages over the original one. First, it improves the estimation precision and resolution of original method; Second, it reduces the burden of computation; Third, the most important one, it becomes not sensitive to various array errors, such as sensors position/phase error, inconsistency of sensors directionality, etc.. So it is promising on engineering application. Statistical performance analysis and underwater experimental results are given in the paper to verify the conclusion.

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References(1)

References

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