Literature Database Entry

koehler2020mgeodar


Anselm Köhler, Lai Bun Lok, Simon Felbermayr, Nial Peters, Paul V. Brennan and Jan-Thomas Fischer, "mGEODAR - A Mobile Radar System for Detection and Monitoring of Gravitational Mass-Movements," Sensors, vol. 20 (21), pp. 6373, November 2020.


Abstract

Radar measurements of gravitational mass-movements like snow avalanches have become increasingly important for scientific flow observations, real-time detection and monitoring. Independence of visibility is a main advantage for rapid and reliable detection of those events, and achievable high-resolution imaging proves invaluable for scientific measurements of the complete flow evolution. Existing radar systems are made for either detection with low-resolution or they are large devices and permanently installed at test-sites. We present mGEODAR, a mobile FMCW (frequency modulated continuous wave) radar system for high-resolution measurements and low-resolution gravitational mass-movement detection and monitoring purposes due to a versatile frequency generation scheme. We optimize the performance of different frequency settings with loop cable measurements and show the freespace range sensitivity with data of a car as moving point source. About 15 dB signal-to-noise ratio is achieved for the cable test and about 5 dB or 10 dB for the car in detection and research mode, respectively. By combining continuous recording in the low resolution detection mode with real-time triggering of the high resolution research mode, we expect that mGEODAR enables autonomous measurement campaigns for infrastructure safety and mass-movement research purposes in rapid response to changing weather and snow conditions.

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Anselm Köhler
Lai Bun Lok
Simon Felbermayr
Nial Peters
Paul V. Brennan
Jan-Thomas Fischer

BibTeX reference

@article{koehler2020mgeodar,
    author = {K{\"{o}}hler, Anselm and Lok, Lai Bun and Felbermayr, Simon and Peters, Nial and Brennan, Paul V. and Fischer, Jan-Thomas},
    doi = {10.3390/s20216373},
    title = {{mGEODAR - A Mobile Radar System for Detection and Monitoring of Gravitational Mass-Movements}},
    pages = {6373},
    journal = {Sensors},
    issn = {1424-8220},
    publisher = {MDPI},
    month = {11},
    number = {21},
    volume = {20},
    year = {2020},
   }
   
   

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Last modified: 2024-07-21