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4 August 2022 Direction finding for mixed independent and correlated signals in impulse noise
Chunlian An, Jie Li, Liang Chen, Shaojiang Deng
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Proceedings Volume 12306, Second International Conference on Digital Signal and Computer Communications (DSCC 2022); 1230602 (2022) https://doi.org/10.1117/12.2641343
Event: Second International Conference on Digital Signal and Computer Communications (DSCC 2022), 2022, Changchun, China
Abstract
In order to improve the estimation performance of the mixed uncorrelated and coherent signals at strong impulsive noise, a novel direction of arrival (DOA) estimation method for mixed independent and correlated signals is introduced. By applying the median value filtering method to the array received data, the amplitude of the impulsive part of data is normalized to a relatively small level. Since the preprocessing process cut out the strong impulsive part of noise effectively, the common secondary statistic DOA estimation algorithm can be adopted, and the DOAs of the independent and correlated signals can be estimated, respectively. Theoretical analysis and simulation results verify the effectiveness of the proposed method under strong impulsive noise as well as the excellent DOA estimation performance.
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Chunlian An, Jie Li, Liang Chen, and Shaojiang Deng "Direction finding for mixed independent and correlated signals in impulse noise", Proc. SPIE 12306, Second International Conference on Digital Signal and Computer Communications (DSCC 2022), 1230602 (4 August 2022); https://doi.org/10.1117/12.2641343
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KEYWORDS
Interference (communication)
Digital filtering
Error analysis
Signal processing
Smoothing
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