Weil, C.
, Camell, D.
, Novotny, D.
and Johnk, R.
(2004),
'Across-the-Road Photo Traffic Radars: New Calibration Techniques', MICROWAVE & RADAR WEEK IN POLAND, Warsaw, 1, PL (Accessed April 25, 2026)
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'Across-the-Road Photo Traffic Radars: New Calibration Techniques'
Published
Author(s)
, , ,
Abstract
We discuss simulator units for calibrating across-the-road Doppler traffic radar transceivers used in enforcement of highway speed limits. Two units of very similar design were developed, one operating at K-band (24 GHz) and the other at Ka-band (35 GHz). The signal received from the radar transmitter is frequency-modulated at rates that correspond to the expected Doppler shift for approaching and receding vehicles travelling at speeds of 25 to 200 km/h. The modulated signal is subsequently retransmitted back to the radar receiver, which demodulates it and then displays the simulated speed . The required calibration accuracy is 1.6 km/h at 90 km/h.Proceedings Title
MICROWAVE & RADAR WEEK IN POLAND
Conference Dates
May 17-19, 2004
Conference Location
Warsaw, 1, PL
Pub Type
Conferences
Keywords
Calibration, Doppler, radar, speed measurement, traffic
Citation
Issues
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Created May 16, 2004, Updated October 12, 2021