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

Sensors

卷:21

MichaelJ. Korenberg¹  Mohamed Tamazin²  Aboelmagd Noureldin²  Haidy Elghamrawy² 

[1] Department of Electrical and Computer Engineering, Queen’s University, Kingston, ON K7L 3N6, Canada;

[2] Electrical and Computer Engineering Department, Royal Military College of Canada, Kingston, ON K7K 7B4, Canada;

关键词: GPS;    fast orthogonal search;    swept jamming;   

DOI  :  10.3390/s21113706

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown