Title
Antenna array characterisation and signal processing for an FM radio-based passive coherent location radar system
Author
Belfiori, F.
Monni, S.
van Rossum, W.L.
Hoogeboom, P.
Publication year
2012
Abstract
The design of passive coherent location radar, which exploits broadcasting transmitters of opportunity in the very high frequency (VHF) radio bandwidth, is presented. Here, the authors primarily focus on the system set-up and on the digital pre-processing steps. Emphasis is given to the antenna section analysis. The eight-element circular array, which is used for the signal acquisition, is analysed by means of simulations and measurements. Compensation for the mutual coupling effect between the different channels is achieved by applying a technique in the digital domain. An innovative digital beamforming algorithm is introduced to reduce the sidelobe level of the circular array pattern. Direct path interference suppression, range/Doppler data processing, greatest-of constant false alarm rate algorithm and range/Doppler-time plots extraction provide the final output of the processing chain. Experimental validation of the processing architecture is presented and the final detection results are compared with an automatic dependent surveillance broadcast data set. © 2012 The Institution of Engineering and Technology.
Subject
Physics & Electronics
RT - Radar Technology
TS - Technical Sciences
Defence Research
Radar
Defence, Safety and Security
Passive radar
Location radar
Antenna analysis
VHF radio
Broadcasting transmitters
Signal processing
Mutual coupling effects
Beamforming algorithm
To reference this document use:
http://resolver.tudelft.nl/uuid:cc511a93-d16e-4152-a84f-a6935fc3ebee
DOI
https://doi.org/10.1049/iet-rsn.2011.04
TNO identifier
465246
Source
IET Radar, Sonar and Navigation, 6 (8), 687-696
Document type
article