During the spaceborne ISAL (Inverse Synthetic Aperture Ladar) imaging, radial velocity between piggyback satellite of ladar and observed is usually relatively large, which will introduce inner-pulse Doppler that cannot be ignored in echo. In this case, traditional “stop-and-go” assumption no longer hold, compressed result along range direction would seriously broaden. Therefore, to obtain a wel...

We propose SpinTrack, a localization system enabling accurate tracking of both stationary and moving targets in the indoor environments. SpinTrack integrated two complementary methods, SpinLoc (for tracking stationary targets) and dTrack (for tracking moving targets) into one localization system. We propose how to eliminate the transitional overhead between the two methods in order to optimize ...

in this paper, the detection of moving targets in airborne widely separated phased multiple input multiple output (mimo) radars which are located on moving platform is investigated. in order to derive the detector, the generalized likelihood ratio test is applied. the proposed detection rule, exploits the clutter subspace information and its maximum likelihood estimation, to improve the detecti...

SAR images experience significant range walk and, without some form of motion compensation, can be quite blurred. The MITREdeveloped Keystone formatting simultaneously and automatically compensates for range walk due to the radial velocity component of each moving target, independent of the number of targets or the value of each target’s radial velocity with respect to the ground. Target radial...

Because of the low signal-to-clutter ratio, it is a difficult problem to detect and image moving targets in foliage. In this paper, a multifrequency multiaperture polarimetric synthetic aperture radar (MFMA POLSAR) system is proposed for imaging of moving targets in foliage. The MFMA POLSAR extends the multifrequency antenna array SAR (MF-SAR) system to multiple polarizations. Full polarization...

In this paper, a parametric sparse representation (PSR) method is proposed for refocusing of moving targets in synthetic aperture radar (SAR) images. In regular SAR images, moving targets are defocused due to unknown motion parameters. Refocusing of moving targets requires accurate phase compensation of echo data. In the proposed method, the region of interest (ROI) data containing the moving t...

This work addresses moving targets detection and imaging using airborne SAR data. Targets are selected according to user-de ned radial velocity and direction. The computational burden is drastically reduced because azimuth compression is done only for ranges with a positive moving target indication. Furthermore, the knowledge of the velocity sign allows to tune the detection and focusing of mov...

The ability to detect and image moving targets, even surrounded by strong clutter on the ground, makes Synthetic Aperture Radar (SAR) more and more important for Ground Moving Target Indication (GMTI). Moving target detection is most commonly performed by GMTI radars based on antenna array solutions without imaging capability while SAR systems do not facilitate detecting the presence of moving ...