Pulse Radar with Field-Programmable Gate Array Range Compression for Real Time Displacement and Vibration Monitoring

被引：5

作者：

Tudose, Mihai-Liviu ^{[1
]}

Anghel, Andrei ^{[1
]}

Cacoveanu, Remus ^{[1
]}

Datcu, Mihai ^{[1
,2
]}

机构：

[1] Univ Politehn Bucuresti, Res Ctr Spatial Informat CEOSpaceTech, Bucharest 011061, Romania

[2] Remote Sensing Technol Inst, German Aerosp Ctr, D-82234 Wessling, Germany

来源：

SENSORS | 2019年 / 19卷 / 01期

关键词：

pulse radar; real time; displacement; vibration; FPGA; USRP; cross-correlation; PROCESSOR;

D O I：

10.3390/s19010082

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

This paper aims to present the basic functionality of a radar platform for real time monitoring of displacement and vibration. The real time capabilities make the radar platform useful when live monitoring of targets is required. The system is based on the RF analog front-end of a USRP, and the range compression (time-domain cross-correlation) is implemented on the FPGA included in the USRP. Further processing is performed on the host computer to plot real time range profiles, displacements, vibration frequencies spectra and spectrograms (waterfall plots) for long term monitoring. The system is currently in experimental form and the present paper aims to prove its functionality. The precision of this system is estimated (using the 3 sigma approximation) at 0.6 mm for displacement measurements and 1.8 mm for vibration amplitude measurements.

引用

页数：16

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