GPS中窄带干扰抑制的优化方法

2011 Fourth International Conference on Modeling, Simulation and Applied Optimization Pub Date : 2011-04-19 DOI:10.1109/ICMSAO.2011.5775480

M. Nouri, S. Abazari Aghdam, V. Tabataba Vakili

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引用次数: 4

摘要

本文提出了一种减小窄带GPS干扰的优化方法。该方法采用快速横向RLS算法。研究了一种基于横向形式的自适应时域滤波器(ATF)，该滤波器在相关前对干扰进行预滤波。该算法旨在提供与标准RLS算法相似的性能，同时减少计算顺序。用于调整滤波器系数的自适应算法是FT-RLS算法。与LMS、NLMS、RLS、基于qr分解的RLS和滑动窗口-RLS算法相比，该算法收敛速度更快，且不依赖于梯度步长。我们对所描述的干扰消除方法的性能给出了初步的结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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An optimal method for narrowband interference mitigation in the GPS

In this paper an optimal method for reducing interference to narrowband GPS interference is presented. In this method, Fast Transversal RLS algorithm is used. An Adaptive Temporal Filter (ATF) based on a Transversal form that pre-filters the interference before correlation is studied. This algorithm is designed to provide similar performance to the standard RLS algorithm while reducing the computation order. The adaptive algorithm used to adjust the filter coefficients is the FT-RLS algorithm. This algorithm has faster convergence and is independent of the gradient step size when compared to LMS, NLMS, RLS, QR-decomposition-based RLS and Sliding window-RLS algorithms. We present initial results on the performance of the described interference cancellation methods.

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2011 Fourth International Conference on Modeling, Simulation and Applied Optimization

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