Conditions affecting the accuracy of speed measurements by low power MM-wave CW Doppler radar

Author

Hines, Marion E. ; Zelubowski, Steven A.

Author_Institution

M/A COM Inc., Burlington, MA, USA

fYear

1992

fDate

10-13 May 1992

Firstpage

1046

Abstract

A millimeter-wave radar that measures true ground speed of wheeled vehicles is described. The tradeoffs associated with such a sensor are discussed. The device uses a single-channel receiver, a dual-beam antenna, and a zero-crossing detector to convert the signals reflected from the road surface to an analog DC output voltage proportional to speed. It is shown that the antenna is critical to the sensor design. Theoretical and simulation results are in good agreement with data collected with the sensor. Road tests have shown the device has an error on the order of about 1%

Keywords

Doppler effect; measurement errors; radar systems; road vehicles; velocity measurement; analog DC output voltage; dual-beam antenna; low power MM-wave CW Doppler radar; measurement error; millimeter-wave radar; sensor design; single-channel receiver; speed measurements; tradeoffs; wheeled vehicles; zero-crossing detector; Antenna measurements; Detectors; Land vehicles; Millimeter wave measurements; Millimeter wave radar; Radar detection; Receiving antennas; Reflector antennas; Road vehicles; Velocity measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1992, IEEE 42nd

Conference_Location

Denver, CO

ISSN

1090-3038

Print_ISBN

0-7803-0673-2

Type

conf

DOI

10.1109/VETEC.1992.245248

Filename

245248