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Power minimization with derivative constraints for high dynamic GPS interference suppression

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Abstract

In this paper, a novel adaptive interference suppression algorithm is proposed for high dynamic GPS (global positioning system) receiver. The new method incorporates derivative constraints on the interference DOA (direction of arrival) into power minimization approach, which could broaden the width of nulls in the interferences directions and adapt to the rapid change of the interference directions. Compared with the traditional wide nulling algorithm based on the derivative constraints, the new method does not have to know or estimate the DOAs of the desired signal and the interference. The new method is firstly discussed in the context of spatial processing, and then extended to space-time adaptive processing to mitigate wideband diffusive multipath interference. Effectiveness of the new method is verified via simulation examples.

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Authors and Affiliations

  1. Tianjin Key Laboratory for Advanced Signal Processing, Civil Aviation University of China, Tianjin, 300300, China

    RenBiao Wu, Chan Li & Dan Lu

  2. Intelligent Information Institute of ATR Lab, Shenzhen University, Shenzhen, 518060, China

    RenBiao Wu

Authors
  1. RenBiao Wu
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  2. Chan Li
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  3. Dan Lu
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Correspondence to RenBiao Wu.

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Wu, R., Li, C. & Lu, D. Power minimization with derivative constraints for high dynamic GPS interference suppression. Sci. China Inf. Sci. 55, 857–866 (2012). https://doi.org/10.1007/s11432-011-4309-5

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  • DOI: https://doi.org/10.1007/s11432-011-4309-5

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