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Analysis and compensation of RF impairments for next generation multimode GNSS receivers

Cetin, Ediz and Kale, Izzet and Morling, Richard C.S. (2007) Analysis and compensation of RF impairments for next generation multimode GNSS receivers. In: Proceedings of the IEEE International Symposium on Circuits and Systems 2007, (ISCAS 2007). IEEE, Los Alamitos, USA, pp. 1729-1732. ISBN 1424409217

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Official URL: http://dx.doi.org/10.1109/ISCAS.2007.377928

Abstract

Global navigation satellite system (GNSS) receivers require solutions that are compact, cheap and low-power, in order to enable their widespread proliferation into consumer products. Furthermore, interoperability of GNSS with non-navigation systems, especially communication systems will gain importance in providing the value added services in a variety of sectors, providing seamless quality of service for users. An important step into the market for Galileo is the timely availability of these hybrid multi-mode terminals for consumer applications. However, receiver architectures that are amenable to high-levels of integration will inevitably suffer from RF impairments hindering their easy widespread use in commercial products. This paper studies and presents analytical evaluations of the performance degradation due to the RF impairments and develops algorithms that can compensate for them in the DSP domain at the base band with complexity-reduced hardware overheads, hence, paving the way for low-power, highly integrated multi-mode GNSS receivers.

Item Type:Book Section
Uncontrolled Keywords:GNSS, I/Q-mismatch, impairment mitigation, image-rejection, adaptive DSP
Research Community:University of Westminster > Electronics and Computer Science, School of
ID Code:5283
Deposited On:25 Jun 2008 10:42
Last Modified:11 Aug 2010 15:33

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