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High range-resolution radar using ultra wideband radio attracts considerable attention as short range vehicle radar. Since it provides high range-resolution to the multiple scatters that constitute a vehicle target, range glint is improved and the ranging accuracy will be improved as compared with that of a low-resolution radar system. However there is no paper regarding the ranging error. In this...
Conventional SAR image formation algorithms can not remove the interference from multipath spreading events, so SAR images appear as ghosts. In this paper a multipath scattering model fit for stripmap SAR has been founded. By analyzing the model, we have obtained three characters of multipath ghosts, which are aspect dependence, lower resolution and non-ideal focusing. For low frequency band and large...
In ultra-wideband synthetic aperture radar (UWB SAR) imaging, scatterers often perform the frequency- and aspect angle-dependent reflectivity characteristic, which is usually neglected in traditional imaging processing. A novel UWB SAR time-frequency representation image formation (TFRIF) is proposed to retrieve the frequency- and aspect angle-dependent information, which is valuable in target detection...
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