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On the impact of system nonlinearities in continuous-wave radar systems for vital parameter sensing
Publikationstyp
Conference Paper
Date Issued
2020
Sprache
English
TORE-URI
Start Page
13
End Page
15
Article Number
9037603
Citation
IEEE Topical Conference on Wireless Sensors and Sensor Networks (WiSNeT 2020): 9037603, 13-15 (2020)
Contribution to Conference
Publisher DOI
Scopus ID
Publisher
IEEE
This paper investigates the influence of nonlinearities on relative distance measurements by continuous-wave radar systems. For the case of a six-port receiver architecture, a mathematical relationship between detector nonlinearity and measurement error is derived. Moreover, a generalized sinusoidal error model, which fits both six-port and mixer-based radar systems, is used to study the effect of nonlinear mixing when one or more displacement movements with different amplitudes are to be detected.