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Proceedings Paper

Very low-phase noise, coherent 94GHz radar for micro-Doppler and vibrometry studies
Author(s): Duncan A. Robertson; Graham M. Brooker; Patrick D. L. Beasley
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Paper Abstract

Micro-Doppler and vibrometry measurements require coherent radars with low phase noise. We report the development of a novel, very low phase noise 94 GHz radar, called T-220, which offers superior performance for micro-Doppler and vibrometry studies compared with our previous work. The radar uses a combination of direct digital synthesis (DDS) chirp generation, frequency upconversion and frequency multiplication to yield very low phase noise and rapid, contiguous chirps, necessary for Doppler studies and other coherent processing applications. Dual fan beam antennas are used to achieve negligible transmit-receive leakage, with fine azimuth resolution and modest elevation coverage. The resulting PPI imagery is very high fidelity with little or no evidence of phase noise effects.

Paper Details

Date Published: 29 May 2014
PDF: 9 pages
Proc. SPIE 9077, Radar Sensor Technology XVIII, 907719 (29 May 2014); doi: 10.1117/12.2053015
Show Author Affiliations
Duncan A. Robertson, Univ. of St. Andrews (United Kingdom)
Graham M. Brooker, The Univ. of Sydney (Australia)
Patrick D. L. Beasley, QinetiQ Ltd. (United Kingdom)

Published in SPIE Proceedings Vol. 9077:
Radar Sensor Technology XVIII
Kenneth I. Ranney; Armin Doerry, Editor(s)

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