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A portable acoustic micro-Doppler radar system for the acquisition of human gait signatures in indoor and outdoor environments is reported. Signals from an accelerometer attached to the leg support the identification of the components in the measured micro-Doppler signature. The acoustic micro-Doppler...
The method of correlation is a technique well known from radar technology. Part of the Doppler signal is delayed by a known time τ: this is equivalent to adding a phase equal to the frequency multiplied by τ. The two signals, the original and the delayed one are compared in a cross-co...
Real records that have been produced by Doppler radar for the case of moving people or cars on the background of trees are used in the study. The results obtained lead to believe that detection of targets with CA CFAR processors provides the required effectiveness in case when the velocity ...
The disclosed invention of Doppler group radar will allow radar devices to work together using shared frequency band without interfering one another, without sacrificing performance, and without much increase in costs.Xin Jin
A Doppler radar wind data assimilation system has been developed for the three-dimensional variational data assimilation (3DVAR) scheme of the High Resolution Limited Area Model (HIRLAM). Radar wind observations can be input for the multivariate HIRLAM 3DVAR either as radial wind superobservations (...
A technique for tracking patterns of radial velocity and reflectivity data obtained with a single-Doppler radar is described. Application of the technique to two different scans of the same spatial region may lead to the extraction of a field of `wind' vectors with both radial and azimuthal comp...
By comparison, the ASR-11 radar possesses most of the same limitations for Doppler-weather processing, and more. As a lower-cost solution for aircraft surveillance at secondary airports, the radar features some 17 dB less peak power than the ASR-9. To achieve the required performance in ...
SD-OCT is generally divided into two categories of swept source OCT (SS-OCT) and Fourier domain OCT (FD-OCT) or spectral radar. The former utilizes a swept/tunable laser source whereas the latter uses a wideband source. Most recently, researchers have begun to extend the SD-OCT technique ...