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| High Dynamic Interference Suppression Based on Few Snapshots for Satellite Navigation System |
| Wang Wen-yi Du Qing-rong Wu Ren-biao Lu Dan Wang Lu |
| Tianjin Key Laboratory for Advanced Signal Processing, Civil Aviation University of China, Tianjin 300300, China |
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Abstract In high dynamic environment, the conventional interference suppression algorithms based on covariance matrix are ineffective because of the dramatic change of interference Direction Of Arrival (DOA) in consecutive snapshots. In this paper, a high dynamic interference suppression algorithm with few snapshots for satellite navigation system is proposed to solve the problem of snapshot deficiency. By utilizing the sparse property of spatial spectrum, the DOAs of interferences are estimated by using few snapshots, even only one snapshot. Then the interference subspace is formed based on the estimated DOAs, and orthogonal subspace projection algorithm is used to suppress interference. Simulations demonstrate the effectiveness of the proposed algorithm.
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Received: 04 November 2013
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Corresponding Authors:
Wang Wen-yi
E-mail: wenyi_wang@126.com
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2014, Vol. 36 
