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Ultrawideband Doppler radar interferometry is known as an effective method that enables high-resolution imaging when using a simple antenna array. The technique, however, suffers from image artifacts when multiple moving targets with the similar Doppler velocities are present in the same range bin. To resolve this problem, we combine the Doppler interferometry technique with the Capon methods. Through...
Imaging of the human body using ultrawideband (UWB) radar for security applications has numerous advantages over other approaches. Recently, low-cost radar systems have been intensively studied for this purpose, employing Doppler interferometry technology to image a single human target. The technique, however, has limitations when there is more than one target person in the scene. To resolve this...
Recently, the authors proposed a fast high-resolution imaging algorithm, called frequency-wavenumber (F-K) Kirchhoff migration. It was developed by combining three algorithms: F-K migration, Kirchhoff migration and inverse boundary scattering transform. The F-K Kirchhoff migration is considered promising in improving the image resolution of images taken with airport security body scanners for which...
UWB (Ultra Wide-Band) radar systems are promising imaging tools covering a variety of application fields including surveillance systems. UWB radar technology can provide advanced capabilities for current surveillance systems. An imaging algorithm for UWB radars, the TR (Time-Reversal) method enables high-resolution imaging in a multipath environment. Conventional TR methods have been applied to antenna...
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