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Journal of Electrical and Computer Engineering
Volume 2010, Article ID 451214, 4 pages
Research Article

A Novel GPS Antijamming Receiver Based on Noncircularity

Department of Electronic Engineering, University of Electronic Science and Technology of China, Sichuan Chengdu 610054, China

Received 25 May 2009; Accepted 2 October 2009

Academic Editor: Muhammad Taher Abuelma'atti

Copyright © 2010 Chen Xian-Ning et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We present a novel antijamming global position system (GPS) receiver that relies on the unique noncircularity of the GPS signal. Since the GPS signal is BPSK modulated, it is a noncircular signal while most interferers are circular signals. The proposed receiver utilizes this circular difference property to excise interferences while preserve the GPS signals. It is shown that the proposed receiver is a blind receiver that does not require any angular information of the satellites.