Experimental Analysis of a SFCW Software- Defined Radar System for Target Detection: Varying Distances Assessment

This paper presents an experimental analysis of a stepped-frequency continuous wave (SFCW) software-defined radar (SDR) system. The system utilizes a USRP N210 with WBX daughterboard, a standard gain horn antenna, a waveguide antenna, and a personal computer. Operating with a bandwidth of 560 MHz, a frequency step size of 20 MHz, and 28 steps, the system's performance is evaluated through range profile analysis. Experimental trials involve transmitting SFCW signals and collecting corresponding echoes for target responses at distances of 0.7 meters, 0.9 meters, and 1.25 meters. The analysis of the range profile reveals distinct target signatures, demonstrating the system's effectiveness for target detection at varying distances.