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Interference cancellation in GPS receiver using noise subspace tracking algorithm
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DOI：10.1016/j.sigpro.2010.07.008.png)
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Abstract
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In this paper, we address the problem of interference cancellation in global positioning system (GPS) receiver using a two-step approach: subspace projection technique and maximum signal-to-noise ratio (MSNR) beamforming. The interference signals can be effectively suppressed by projecting the received signal on the noise subspace. Here noise subspace tracking algorithm is employed to estimate the noise subspace directly. We then apply a beamformer to maximize the signal-to-noise ratio of the interference-free signal. Simulation results show that our approach can effectively eliminate the strong interference and enhance the performance of the GPS receiver. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.
Keywords:
Global positioning system
Interference cancellation
Noise subspace tracking
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