Empirical investigation of loudspeakers as test-targets for continuous-wave radar

Publikationstyp
Conference Paper
Date Issued
2025-06
Sprache
English
Author(s)
Frewer, Niklas 
Hochfrequenztechnik E-3  
Tegowski, Bartosz  
Hochfrequenztechnik E-3  
Hayek, Josef
Kölpin, Alexander  orcid-logo
Hochfrequenztechnik E-3  
TORE-URI
https://hdl.handle.net/11420/56864
Citation
26th International Radar Symposium, IRS 2025
Contribution to Conference
26th International Radar Symposium, IRS 2025  
Publisher DOI
10.23919/IRS64527.2025.11046166
Scopus ID
2-s2.0-105010833872
Publisher
IEEE
ISBN
979-8-3315-0663-6
978-3-00-079305-9
Loudspeakers provide a low-cost solution to implement vibrating radar targets. This contribution empirically investigates the reflection characteristics of loud-speakers used to test continuous-wave (CW) radars. Four different loudspeakers under test are analyzed. The radar receive signal only varies in phase when displacing the loud-speaker while it is not fed. In contrast, the receive signal varies in phase and amplitude when the loudspeaker vibrates. The resulting variation in radar cross section (RCS) and phase is determined by measurements at 61 GHz for different vibration frequencies and feed amplitudes.
DDC Class
600: Technology