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Microwave Front End for True Ground Speed Measurements

Published online by Cambridge University Press:  21 October 2009

Jürgen Kehrbeck
Affiliation:
(Institut für Höchstfrequenztechnik und Elektronik (IHE), University of Karlsruhe)
Eberhardt Heidrich
Affiliation:
(Institut für Höchstfrequenztechnik und Elektronik (IHE), University of Karlsruhe)
Werner Wiesbeck
Affiliation:
(Institut für Höchstfrequenztechnik und Elektronik (IHE), University of Karlsruhe)

Abstract

A dual channel microwave Doppler-Sensor-Module for 24 GHz is presented. This front end is well suited for true ground speed and distance measurements in all kinds of automotive applications. The microwave components such as oscillator, mixer, antenna and their characteristics in the MIC are discussed. The influence of the antenna pattern and the road surface on the Doppler spectrum is treated in a 3D-field theoretical simulation. This simulation takes the antenna nearfield and the distributed scattering of the road into account.

Type
Research Article
Copyright
Copyright © The Royal Institute of Navigation 1995

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References

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