Communications: directive radio wave systems and devices (e.g. – Synthetic aperture radar
Reexamination Certificate
2005-10-04
2005-10-04
Tarcza, Thomas H. (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Synthetic aperture radar
C342S02500R, C342S107000, C342S162000, C342S188000
Reexamination Certificate
active
06952178
ABSTRACT:
A method of detecting moving objects and of estimating their velocity and position in SAR images includes the steps of generating a sequence of single-look SAR images which have the same polarization, are successive in time, and have a look center frequency which varies from one image to the next; detecting candidates for moving objects in the single-look SAR images of the sequence by searching for regions with a course of intensity that deviates from the environment; estimating the velocity of the detected candidates; and verifying the detected candidates as moving objects. The estimation of one or more velocity components of a detected candidate takes place jointly with the estimation of one or more position components of the candidate. A cost function is established as a function of the components to be estimated, taking into account the positions of the candidate in the individual single-look SAR images of the sequence, which cost function is minimized by means of an optimization method for the parameter or parameters to be estimated.
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Alsomiri Isam
Crowell & Moring LLP
EADS Deutschland GmbH
Tarcza Thomas H.
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