Narrow-Band Jamming Signal Cancellation Algorithm for GPS Receivers 


Vol. 41,  No. 8, pp. 859-867, Aug.  2016


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  Abstract

The Global Positioning System is a navigation system that has been developed by the United States for military use. Currently, many countries, including the Republic of Korea, use GPS for civilian and military uses. However, as useful as it is, GPS is vulnerable to its Jamming signal, as the strength of the signal from satellites is very weak. In this paper, a novel jamming signal detection and cancellation method is proposed when a narrow-band jamming signal is included in the GPS received signal. At the GPS receiver, the received signal is transformed to a frequency domain sample by Fast Fourier Transform. In order to suppress the Spectral Leakage, the Blackman-Harris window is used. The proposed jamming signal cancellation algorithm will find the frequency sample with maximum power and null the maximum sample in addition to some lateral samples. If the GPS receiver is designed with FFT of size 128 to 512, it is shown that 42 samples are optimal to cancel the narrow-band jamming signal.

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  Cite this article

[IEEE Style]

I. Lee, S. Oh, J. Han, "Narrow-Band Jamming Signal Cancellation Algorithm for GPS Receivers," The Journal of Korean Institute of Communications and Information Sciences, vol. 41, no. 8, pp. 859-867, 2016. DOI: .

[ACM Style]

In-seok Lee, Seong-jun Oh, and Jin-hee Han. 2016. Narrow-Band Jamming Signal Cancellation Algorithm for GPS Receivers. The Journal of Korean Institute of Communications and Information Sciences, 41, 8, (2016), 859-867. DOI: .

[KICS Style]

In-seok Lee, Seong-jun Oh, Jin-hee Han, "Narrow-Band Jamming Signal Cancellation Algorithm for GPS Receivers," The Journal of Korean Institute of Communications and Information Sciences, vol. 41, no. 8, pp. 859-867, 8. 2016.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880