Joint DOA and Polarization Estimation with Sparsely Distributed Polarization Sensitive Array

SI Weijian; ZHOU Jiongsai; QU Zhiyu

doi:10.11999/JEIT150840

Volume 38 Issue 5

May 2016

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Article Navigation > Journal of Electronics & Information Technology > 2016 > 38(5): 1129-1134

SI Weijian, ZHOU Jiongsai, QU Zhiyu. Joint DOA and Polarization Estimation with Sparsely Distributed Polarization Sensitive Array[J]. Journal of Electronics & Information Technology, 2016, 38(5): 1129-1134. doi: 10.11999/JEIT150840

Citation:

SI Weijian, ZHOU Jiongsai, QU Zhiyu. Joint DOA and Polarization Estimation with Sparsely Distributed Polarization Sensitive Array[J]. Journal of Electronics & Information Technology, 2016, 38(5): 1129-1134. doi: 10.11999/JEIT150840

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Joint DOA and Polarization Estimation with Sparsely Distributed Polarization Sensitive Array

doi: 10.11999/JEIT150840

Funds:

Aviation Science Foundation of China (201401P6001), Fundamental Research Funds for the Central Universities (HEUCF150804)

Received Date: 2015-07-13
Rev Recd Date: 2015-12-18
Publish Date: 2016-05-19

Abstract

Abstract

This paper studies the multiple targets Direction Of Arrival (DOA) and polarization parameter estimation problem based on the Sparsely Distributed Polarization Sensitive Array (SD-PSA). First of all, the signal model of SD-PSA is set up. Then, by utilizing the space rotational invariance of the proposed array the Estimation of Signal Parameters via Rotational Invariance Techniques (ESPRIT) algorithm is adopted to calculate the signals periodic ambiguous but high accuracy DOA estimation. Meanwhile, polarization information and the coarse DOA estimation are derived using the relationship between the sub arrays steering vector of the signals. Finally, using the coarse DOA estimation data, the fine and unambiguous estimates of DOA are obtained. In this paper, the adjacent array elements spacing of the proposed array is beyond half wavelength of the signal, thus the array extends the two-dimensional physical aperture and reduces the mutual coupling effects to a degree. Accordingly the DOA estimation precision is greatly increased. The simulation results of the algorithm verify the effectiveness of the DOA and polarization estimation.

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References(21)

References

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