GPS Swept Anti-Jamming Technique Based on Fast Orthogonal Search (FOS)

Mohamed Tamazin; Michael J Korenberg; Haidy Elghamrawy; Aboelmagd Noureldin

doi:10.3390/s21113706

GPS Swept Anti-Jamming Technique Based on Fast Orthogonal Search (FOS)

Sensors (Basel). 2021 May 26;21(11):3706. doi: 10.3390/s21113706.

Authors

Mohamed Tamazin^{1

2}, Michael J Korenberg³, Haidy Elghamrawy^{1

4}, Aboelmagd Noureldin^{1

3}

Affiliations

¹ Electrical and Computer Engineering Department, Royal Military College of Canada, Kingston, ON K7K 7B4, Canada.
² Electronics and Communication Engineering Department, Arab Academy for Science, Technology and Maritime Transport, Alexandria P.O. Box 1029, Egypt.
³ Department of Electrical and Computer Engineering, Queen's University, Kingston, ON K7L 3N6, Canada.
⁴ Department of Engineering Mathematics and Physics, Faculty of Engineering, Cairo University, Giza 12613, Egypt.

Abstract

Recently, there has been growing demand for GPS-based reliable positioning, with the broadening of a range of new applications that mainly rely on GPS. GPS receivers have, recently, been attractive targets for jamming. GPS signals are received below the noise floor. Thus, they are vulnerable to interference and jamming. A jamming signal can potentially decrease the SNR, which results in disruption of GPS-based services. This paper aims to propose a reliable and accurate, swept anti-jamming technique based on high-resolution spectral analysis, utilizing the FOS method to provide an accurate spectral estimation of the GPS swept jamming signal. resulting in suppressing the jamming signal efficiently at the signal processing stages in the GPS receiver. Experiments in this research are conducted using the Spirent^TM GSS6700 simulation system to create a fully controlled environment to test and validate the developed method's performance. The results demonstrated the proposed method's capabilities to detect, estimate, and adequately suppress the GPS swept jamming signals. After the proposed anti-jamming module was employed, the software receiver was able to provide a continuous positioning solution during the presence of jamming within a 10 m positioning accuracy.

Keywords: GPS; fast orthogonal search; swept jamming.