Effect of Antenna Pattern of Radar on Vibration Estimation for Infrastructure Monitoring

Recently, a way of detecting the signs of deterioration of the infrastructures has been needed. Measuring the vibration state of structures by using millimeter-wave radar is one of the useful methods. However, sometimes the radar itself is subject to disturbances such as vibration when measuring str...

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Bibliographic Details
Published in2020 International Symposium on Antennas and Propagation (ISAP) pp. 741 - 742
Main Authors Kinoshita, Takahiro, Yamada, Hiroyoshi
Format Conference Proceeding
LanguageEnglish
Japanese
Published IEICE 25.01.2021
Subjects
Antenna pattern
Cross-spectrum
Doppler radar
Estimation error
Monitoring
Radar antennas
Radar measurements
Simulation
Vibration measurement
Vibration monitoring
Vibrations
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Summary:Recently, a way of detecting the signs of deterioration of the infrastructures has been needed. Measuring the vibration state of structures by using millimeter-wave radar is one of the useful methods. However, sometimes the radar itself is subject to disturbances such as vibration when measuring structures outdoors. Hence, the way of removing the vibration disturbances by taking the cross-spectrum of the baseband signals obtained by two radars has been proposed. In this paper, we examined the effect of antenna pattern on vibration estimation with the disturbance cancellation method. The simulation result suggests that the estimation error of the vibration amplitude is less than 1% when the half-power beam width of the antenna is smaller than 40°.
DOI:10.23919/ISAP47053.2021.9391237