Pulse radar with FPGA range compression for real time displacement and\n vibration monitoring

2018/11/14 by Mihai Tudose, Tudose, Mihai, Andrei Anghel +5
Engineering · Computer Science · Physics and Astronomy · #Non-Invasive Vital Sign Monitoring #Sensor Technology and Measurement Systems #Advanced Optical Sensing Technologies

paper · pdf · doi:10.48550/arxiv.1811.05958

Abstract

This paper aims at presenting the basic functionality of a radar platform for\nreal-time monitoring of displacement and vibration. The real time capabilities\nmake the radar platform useful when live monitoring of targets is required. The\nsystem is based on the RF analog front-end of an USRP, and the range\ncompression (time-domain cross-correlation) is implemented on the FPGA included\nin the USRP. Further processing is performed on the host computer to plot real\ntime range profiles, displacements, vibration frequencies spectra and\nspectrograms (waterfall plots) for long term monitoring. The system is\ncurrently in experimental form and the present paper aims at proving its\nfunctionality. The precision of this system is estimated at 0.6 mm for\ndisplacement measurements and 1.8 mm for vibration amplitude measurements.\n

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