2-D DOA Estimation of Distributed Array with Single Snapshot

WANG Jun; XIANG Hong; WEI Shaoming; JIANG Hai

doi:10.11999/JEIT170856

Volume 40 Issue 6

May 2018

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WANG Jun, XIANG Hong, WEI Shaoming, JIANG Hai. 2-D DOA Estimation of Distributed Array with Single Snapshot[J]. Journal of Electronics & Information Technology, 2018, 40(6): 1375-1382. doi: 10.11999/JEIT170856

Citation:

WANG Jun, XIANG Hong, WEI Shaoming, JIANG Hai. 2-D DOA Estimation of Distributed Array with Single Snapshot[J]. Journal of Electronics & Information Technology, 2018, 40(6): 1375-1382. doi: 10.11999/JEIT170856

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2-D DOA Estimation of Distributed Array with Single Snapshot

doi: 10.11999/JEIT170856

1.
(School of Electronics and Information Engineering, Beihang University, Beijing 100191, China)
2.
(Key Laboratory of Space Physics, Beijing 100076, China)

Funds:

The National Natural Science Foundation of China (61671035, 61501011, 61501012)

Received Date: 2017-09-07
Rev Recd Date: 2018-01-22
Publish Date: 2018-06-19

Abstract

Abstract

An algorithm of Direction Of Arrival (DOA) estimation based on the single-snapshot data is proposed for distributed Two-Dimensional (2-D) array. 2-D Hankle matrixes are firstly constructed using the single observation of every subarray element. Then angles of azimuth and elevation for different baselines based on the distributed 2-D array are estimated using 2-D state space balance method. Finally, high accuracy and unambiguous angles of azimuth and elevation are obtained through the solution of fuzzy algorithm. The matching problem of the DOA estimation about different baselines and the pairing problem between azimuth and elevation are well solved by the proposed algorithm, therefore the characteristic of large aperture is acquired using the distributed array. At the same time, this algorithm can deal with the correlation signals and uncorrelation signals. Computer simulation results confirm the effectiveness of the proposed algorithm.
- DOA estimation,
- Distributed array,
- Two-dimensional Hankle matrix,
- Auto pairing

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References(26)

References

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