TARGET DETECTION USING USRP-BASED SOFTWARE DEFINED RADIO

Abstract

Software-Defined Radio (SDR) architecture with a lower level of complexity and expense could be used to create FMCW (Frequency Modulated Continuous Wave) radar systems. This report explores the use of FMCW radar technology, which is a radar technique where the transmitted signal is continuously modulated in frequency. This technology is implemented with Software-Defined Radio (SDR) architecture, which offers flexibility and cost-effectiveness. NI LabVIEW is used for the analysis and implementation of FMCW radar systems. Using the Universal Software Radio Peripheral (USRP-2921) as the SDR platform, the study manages real-time target detection. The USRP and host PC are interfaced using NI LabVIEW. This makes it possible to process radar data in real time. The paper demonstrates the use of FMCW radar systems in SAR mode, implemented with SDR technology. It emphasizes the flexibility and cost-effectiveness of the SDR approach and describes the key steps in the radar signal processing chain, from target detection. A linear frequency modulated (LFM) signal produced by the transmitter USRP makes up the broadcast waveform.