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Micro-Doppler radar signatures of human activity
SPIE Proceedings, 2010We will present the continued development of a millimeter-wave/sub-THz radar system used to capture and assess micro-Doppler signatures of humans. This system is being developed to remotely monitor respiration and heartbeat rates at standoff distances of up to 100 meters.
Moulton, Michael C. +3 more
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Doppler Shift Signature for a MCSs Selection in a VANET
The Smart Computing Review, 2014The emergence of Intelligent Transportation Systems has given new hope and an unprecedented number of promising benefits to the transportation industry. However, these benefits are accompanied with inherent challenges due to the higher mobility of the vehicular nodes. One of the major problems faced is the induced Doppler shift in the carrier frequency
Etienne Alain Feukeu +2 more
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Multistatic Micro-Doppler Signature of personnel
2008 IEEE Radar Conference, 2008For the first time the multistatic Micro-Doppler Signature (mu-DS) of personnel targets has been collected using University College Londonpsilas NetRAD radar system. The data demonstrates that using a multistatic mu-DS is a viable approach to overcoming the problem of self-occlusion, where a target obstructs its own mu-DS, in automatic target ...
Graeme E. Smith +2 more
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Multiperspective micro-Doppler signature classification
IET International Conference on Radar Systems 2007, 2007Multiperspective automatic target recognition is considered to assist underlying classifiers by providing more views of the target. For the first time data from netted radar has been analysed for micro-Doppler signature content and a multiperspective dynamic time warping classifier developed.
G.E. Smith, K. Woodbridge, C.J. Baker
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The pre-stenotic Doppler shift signature.
VASA. Zeitschrift fur Gefasskrankheiten, 1992In two series of measurements the Doppler shift signatures of 10 healthy volunteers were studied at varying distances proximal to a total reflection site, in order to describe parameters which are predictive for downstream lesions. Characteristic changes both in amplitude and time parameters were found; the most marked changes being the abolishment of ...
K H, Labs +3 more
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Analytical models of Doppler data signatures
Journal of Guidance, Control, and Dynamics, 1995A primary indicator of the accuracy of orbit determination based on Doppler tracking is the graph of residuals vs time. Parameter errors in the orbit determination model produce characteristic signatures in the residuals plot. A systematic method of modeling the signature due to a parameter error by means of first and second partial derivative ...
Connie J. Weeks, Melissa J. Bowers
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Spectral Doppler Signature Waveforms in Ultrasonography
Ultrasound Quarterly, 2010Doppler ultrasound is routinely used in the clinical setting to evaluate blood flow in many major vessels of the body. Spectral Doppler is used to display the normal and abnormal signature waveforms that are unique to each vessel. It is important for the sonographer and the radiologist to recognize both what is normal and what is abnormal in a spectral
Megan M, Wood +7 more
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Vortex Signature Recognition by a Doppler Radar
Journal of Applied Meteorology, 1970Abstract A scanning Doppler radar has capability for measurement of the tangential shear of radial velocity or gradient of the radial component of velocity in a direction normal to the radial vector. Tangential shear of sufficient magnitude in a horizontal direction reveals one term of the expression for vorticity in a horizontal plane.
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Experimental Observations of Micro-Doppler Signatures With Passive Radar
IEEE Transactions on Aerospace and Electronic Systems, 2019Passive radar's ability to observe micro-Doppler phenomena from helicopters, fixed-wing propeller aircraft, and jet engine modulation is examined. Experimental results from a digital television based passive radar demonstrate its potential to observe characteristic signatures of multiple types of air targets and estimate helicopters’ primary rotor ...
Joseph Landon Garry, Graeme E. Smith
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Micro-Doppler Signatures of Small Boats
2014In this chapter, the authors first use the small boats and sea clutter database collected by the Council for Scientific and Industrial Research (CSIR) of South Africa to demonstrate radar microDoppler signatures of small boats in sea clutter. Then, microDoppler images of small boats were compared in the littoral environment.
Victor C. Chen, David Tahmoush
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