GPS is vulnerable to jamming and interference signals due to the weak signals received at the ground level. The methods decreasing jamming signals and the technologies on the localization are studied actively. However, the cost for jamming signal systems are high and cannot analyze the jamming signals accurately due to low quantization levels. Thus, it is needed to have a budgetary SDR based the hardware platform with quantized levels to analyze the jamming signals. In this paper, the platform based on SDR is designed to analyze the jamming signals. The designed platform displays the received jamming signal as the FFT and time domains showing spoofing signals as the correlation value. In addition, the performance is verified by laboratory testings using the GPS simulator.

Keywords: SDR, GPS, jamming