Noise Parameters of CW Radar Sensors Used in Active Defense Systems
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Date
2012-06
Authors
ORCID
Advisor
Referee
Mark
Journal Title
Journal ISSN
Volume Title
Publisher
Společnost pro radioelektronické inženýrství
Abstract
Active defense represents an innovative way of protecting military vehicles. It is based on the employment of a set of radar sensors which detect an approaching threat missile and activate a suitable counter-measure. Since the radar sensors are supposed to detect flying missiles very fast and, at the same time, distinguish them from stationary or slow-moving objects, CW Doppler radar sensors can be employed with a benefit. The submitted article deals with a complex noise analysis of this type of sensors. The analysis considers the noise of linear and quasi-linear RF components, phase-noise of the local oscillator as well as the noise of low-frequency circuits. Since the incidence of the phase-noise depends strongly upon the time delay between the reference and the cross-talked signals, a new method of measuring noise parameters utilizing a reflecting wall has been developed and verified. The achieved results confirm potentially high influence of the phase-noise on the noise parameters of the mentioned type of radar sensors. Obtained results can be used for the analysis of noise parameters of the similar but even more complex sensors.
Description
Citation
Radioengineering. 2012, vol. 21, č. 2, s. 632-639. ISSN 1210-2512
http://www.radioeng.cz/fulltexts/2012/12_02_0632_0639.pdf
http://www.radioeng.cz/fulltexts/2012/12_02_0632_0639.pdf
Document type
Peer-reviewed
Document version
Published version
Date of access to the full text
Language of document
en