Application of a six-port wave-correlator for a very low velocity measurement using the Doppler effect

Author

Xiao, Fengchao ; Ghannouchi, Fadhel M. ; Yakabe, Toshiyuki

Author_Institution

Dept. of Inf. & Commun. Eng., Univ. of Electro-Commun., Tokyo, Japan

Volume

52

Issue

2

fYear

2003

fDate

4/1/2003 12:00:00 AM

Firstpage

297

Lastpage

301

Abstract

A new radar system based on a six-port wave-correlator is proposed for measuring the Doppler frequency of a moving object. The six-port wave-correlator is operated as a two-channel wave receiver and the vector relation, both amplitude and phase, between the two input signals is determined directly by measuring the power levels. By using the six-port wave-correlator, no circulator or mixer is needed for the phase measurement. The proposed system has been applied for the measurement of an object moving at a very low velocity. The experiment and simulation results at 10 GHz show that the target velocity around 0.2 mm/s has been successfully inferred, which proved the validity of the proposed scheme.

Keywords

Doppler effect; Doppler radar; correlators; microwave measurement; radar applications; velocity measurement; 0.2 mm/s; 10 GHz; Doppler effect; Doppler frequency measurement; microwave measurement; phase measurement; radar system; six-port wave-correlator; two-channel wave receiver; very low velocity measurement; Doppler effect; Doppler radar; Doppler shift; Frequency measurement; Microwave measurements; Phase measurement; Pollution measurement; Power measurement; Radar measurements; Velocity measurement;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2003.810039

Filename

1202033