Extended ellipse-based reconstruction algorithm for six-port radar

Publikationstyp
Conference Paper
Date Issued
2019-05-14
Sprache
English
Author(s)
Linz, Sarah  
Lurz, Fabian  
Weigel, Robert  
Kölpin, Alexander  orcid-logo
TORE-URI
http://hdl.handle.net/11420/6438
Article Number
8714294
Citation
IEEE Radio and Wireless Symposium, RWS: 8714294 (2019-05-14)
Contribution to Conference
IEEE Radio and Wireless Symposium, RWS, 2019  
Publisher DOI
10.1109/RWS.2019.8714294
This work proposes a new approach to calibrate six-port displacement sensors without the use of calibration standards or well-known target positions. The detectors' nonlinearities can be also compensated in this one-step cali-bration. An implicit equation of a so-called squircle is used to approximate measured I/Q data of arbitrary and unknown target positions. It is demonstrated with measurement data, that the squircle is a suitable model to describe errors caused by power imbalance, crosstalk or parasitic reflections as well as detector nonlinearities.