Title :
Cross-range velocity computation for ISAR imaging
Author :
Wu, H.Q. ; Delisle, G.Y. ; Grenier, D. ; Turner, R.M.
Author_Institution :
Dept. of Electr. Eng., Laval Univ., Quebec City, Que., Canada
Abstract :
A phase difference algorithm for the computation of cross-range velocity using two conventional imaging radars is presented. The features of the dominant scatterer of an object are used both for radial motion compensation and for the measurement of cross-range motion. As a result, the generalized ISAR (inverse synthetic aperture radar) imaging is equivalent to the imaging of the object rotating at known rate. A computer simulation is used to check the cross-range velocity results and the imaging of a four-scatterer target.<>
Keywords :
microwave imaging; motion estimation; synthetic aperture radar; ISAR imaging; computer simulation; cross-range velocity; dominant scatterer; four-scatterer target; imaging radars; inverse synthetic aperture radar; phase difference algorithm; radial motion compensation; Computer simulation; Computer vision; Difference equations; Geometry; Motion compensation; Nonlinear equations; Radar imaging; Radar scattering; Spaceborne radar; Trajectory;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-0730-5
DOI :
10.1109/APS.1992.221578
