Title :
Absolute Attitude From Monostatic Radar Measurements of Rotating Objects
Author_Institution :
Fraunhofer Inst. for High Freq. Phys. & Radar Tech., Wachtberg, Germany
Abstract :
The Tracking and Imaging Radar (TIRA) System is used to determine orbits and to generate Inverse Synthetic Aperture Radar (ISAR) images of satellites. In certain situations such as damage analysis, a satellite to be observed is not stabilized, and its attitude is not known in advance. In order to assess the situation, the intrinsic motion is important to know. In this paper, several algorithms are derived and tested which estimate a constant rotational motion from 3-D features obtained from 2-D ISAR images by a modified stereo vision algorithm.
Keywords :
artificial satellites; attitude control; radar imaging; radar interferometry; rotation; stereo image processing; synthetic aperture radar; 2D ISAR images; 3D features; Inverse Synthetic Aperture Radar; TIRA System; Tracking and Imaging Radar; absolute attitude; constant rotational motion; damage analysis; intrinsic motion; modified stereo vision algorithm; monostatic radar measurements; orbits; rotating objects; satellite; Earth; Equations; Null space; Orbits; Radar measurements; Satellites; 3-D; Attitude; ISAR; imaging; satellite;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
DOI :
10.1109/TGRS.2011.2159727
