Proceedings Article10.1109/RADAR.2008.4720810
Evaluation of WiFi beacon transmissions for wireless based passive radar
H Guo,Karl Woodbridge,Christopher J. Baker +2 more
- 26 May 2008
- pp 1-6
76
TL;DR: Detailed study on the use of IEEE 802.11 (WiFi) transmissions in a passive radar system shows that this technique has considerable promise for a low cost and widely deployable detection and tracking system.
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Abstract: Wireless transmissions are a potentially powerful and widely available source of transmissions for passive radar detection. In this work we have carried out a detailed study on the use of IEEE 802.11 (WiFi) transmissions in a passive radar system. The WiFi transmission sequence has been found to be complex and dependent on the user environment but is dominated by direct sequence spread spectrum (DSSS) and orthogonal frequency division multiplexing (OFDM) signals. An ambiguity function analysis of the DSSS based WiFi beacon signal has been carried out followed by field measurements using a wireless based passive radar system. Range and Doppler characterization of this system is reported and compared with the theoretical predictions. Detection of moving human targets has been achieved for the first time using 802.11 transmissions. This work shows that this technique has considerable promise for a low cost and widely deployable detection and tracking system.
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Citations
•Dissertation
Automatic target recognition using passive bistatic radar signals
Jonathan Pisane
- 04 Apr 2013
TL;DR: The design, development, and test of three novel, distinct automatic target recognition (ATR) systems for the recognition of airplanes and, more specifically, non-cooperative airplanes, i.e. airplanes that do not provide information when interrogated, in the framework of passive bistatic radar systems are presented.
•Proceedings Article
Ambiguity function study for UMTS Passive Radar
D. Petri,Amerigo Capria,Marco Martorella,Fabrizio Berizzi +3 more
- 30 Oct 2009
TL;DR: The simulations have proven that the UMTS signal has good properties in term of range and Doppler resolution, and the bistatic geometry effects on the ambiguity function has been studied.
23
•Proceedings Article
Range sidelobes reduction filters for WiFi-based passive bistatic radar
Paolo Falcone,Fabiola Colone,Pierfrancesco Lombardo,T. Bucciarelli +3 more
- 30 Oct 2009
TL;DR: The proposed approach is shown to yield a significant improvement of the peak to sidelobe ratio thus making the considered waveform more attractive for passive local area surveillance.
23
Doppler frequency sidelobes level control for WiFi-based Passive Bistatic Radar
Paolo Falcone,Fabiola Colone,Pierfrancesco Lombardo +2 more
- 23 May 2011
TL;DR: In this paper, the problem of Doppler frequency sidelobes control is addressed with reference to a WiFi-based Passive Bistatic Radar (PBR), and an innovative method is introduced to design effective weighting networks based on the solution of a constrained optimization problem.
19
Opportunistic physical activity monitoring via passive WiFi radar
Wenda Li,Bo Tan,Robert J. Piechocki,Ian J Craddock +3 more
- 01 Sep 2016
TL;DR: A novel opportunistic and non-intrusive monitoring system which can quantify activity levels based on analysis of ambient WiFi signal scatter is introduced and Experimental results corroborate the efficacy of the proposed system in long term ADL monitoring in residential healthcare applications.
19
References
Doppler Tolerance of OFDM-coded Radar Signals
G.E.A. Franken,H. (Homayoun) Nikookar,Piet van Genderen +2 more
- 01 Sep 2006
TL;DR: It is shown that the target speed that can be allowed for a single pulse should be limited, and the Doppler tolerance of such a radar is expressed as a function of Dopple frequency and time delay.
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Passive radar detection using wireless networks
H. Guo,SL Coetzee,D Mason,Karl Woodbridge,Chris I. Baker +4 more
- 01 Jan 2007
TL;DR: Waveform analysis shows that some of the modulations used within the transmission sequence have suitable properties for target localisation and this technique has a high potential for the basis of a widely available low cost passive surveillance system.
23
•Proceedings Article
Passive radar detection using wireless networks
Guo,Coetzee,Mason,Woodbridge,Baker +4 more
- 01 Jan 2007
11
Passive coherent location radar systems. Part 2: waveform properties
Christopher J. Baker,Hugh Griffiths,Ioannis Papoutsis +2 more
- 03 Jun 2005
TL;DR: In this paper, practical measurements of transmitted waveforms are reported and used to illustrate their effects on the resulting system design and performance, in particular the self-ambiguity which enables the limits on range and Doppler resolution to be evaluated is computed.
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