Compensation of Self-RCS and IQ-Demodulation Imperfections of Continuous-Wave Radar Systems
This contribution discusses the calibration of continuous-wave radar sys-tems used for relative displacement measurements. To address systematic measurement errors arising from receiver inphase-quadrature (IQ) imperfections as well as the own radar cross section of the radar device (self-RCS), a model of the radar response that accounts for both effects is presented. Given the model parameters, which are retrieved based on calibration measurements, the effects of both IQ-imbalance and self-RCS can be removed. Measurements with a custom 24-GHz six-port-based radar system validate the proposed concept enabling highly accurate relative displacement measurements.
Authors
- Alexander Koelpin (ORCID: https://orcid.org/0000-0002-9071-5661)
- Bartosz Tegowski (ORCID: https://orcid.org/0000-0002-4849-4527)
Institutions
- Universität Hamburg (DE)
- Hamburg University of Technology (DE)
Publication Details
- Published
- 2025-05-21
- DOI
- https://doi.org/10.23919/irs64527.2025.11046051
- Primary Topic
- Advanced Control and Stabilization in Aerospace Systems
- Type
- article
- Field-Weighted Citation Impact
- 0.00