A novel look into digital beamforming techniques for multipath and interference mitigation in Galileo Ground Stations

2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop Pub Date : 2010-09-27 DOI:10.1109/ASMS-SPSC.2010.5586884

J. Vicario, Marc Barcelo, Marti Mañosas, G. Seco-Granados, F. Antreich, J. M. Cebrián, Joan Picanyol, F. Amarillo

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引用次数: 6

Abstract

In this paper, we explore the adoption of Array Signal Processing in Galileo Ground Stations. The main motivation comes from the need of efficiently mitigating multipath and interference sources in order to achieve centimetre accuracy. One of the critical aspects appearing when an array of antennas is implemented resides on the array perturbations and mismod-elling. For that reason, this work places special emphasis on this issue and some robust beamforming techniques are proposed. Differently from other studies addressing the use of conventional beamforming techniques for navigation applications, we propose novel strategies specially adapted to the considered scenario. As shown in the paper, the use of digital beamforming allows for a (at least) 47% reduction in terms of tracking errors when compared to a single antenna receiver.

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对伽利略地面站中用于多径和干扰缓解的数字波束形成技术的新颖研究

本文探讨了阵列信号处理技术在伽利略地面站中的应用。其主要动机是为了达到厘米级精度，需要有效地减少多径和干扰源。天线阵列在实现过程中出现的一个关键问题是阵列摄动和建模错误。为此，本工作特别强调了这一问题，并提出了一些鲁棒波束形成技术。与其他研究解决传统波束形成技术在导航应用中的应用不同，我们提出了专门适应所考虑的场景的新策略。如本文所示，与单天线接收机相比，使用数字波束形成可以(至少)减少47%的跟踪误差。

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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2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop

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