Title :
Formation Flying InSAR Configuration Error Simulation and Compensation
Author :
Zhi, Tang ; Jingwen, Li ; Yinqing, Zhou ; Liguo, Liu
Author_Institution :
Sch. of Electron. & Inf. Eng., Beihang Univ., Beijing
fDate :
July 31 2006-Aug. 4 2006
Abstract :
Configuration error for airborne formation flying InSAR was studied. The aircraft interval changes are the most important error. Interval decreasing is taken as an example. Phase changes with baseline changes were derived in formula. The simulation result of plane interval changes is given out. A pentahedron on flat ground is set to show influence of the configuration error. Correct phase compensation is the key technology to get accurate interferogram. So azimuth slope eliminating was adopted. Two control points were arranged in observing area to compensate the phase error introduced by configuration error. This algorithm can improve the DEM precision for whole area. The pentahedron terrain is employed to verify compensation algorithm. The simulation terrain and compensation results prove that the algorithm is effective and efficient.
Keywords :
airborne radar; digital elevation models; geophysical signal processing; geophysical techniques; motion compensation; radar interferometry; radar signal processing; remote sensing by radar; synthetic aperture radar; DEM precision; InSAR formation flying configuration error; aircraft interval changes; azimuth slope elimination; baseline changes; formation flying configuration error compensation; formation flying configuration error simulation; interferogram accuracy; pentahedron configuration; phase changes; phase compensation; Aerospace electronics; Aerospace engineering; Aircraft propulsion; Azimuth; Computer errors; Error correction; Satellites; Shape; Synthetic aperture radar interferometry; Terrain mapping;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2006. IGARSS 2006. IEEE International Conference on
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-9510-7
DOI :
10.1109/IGARSS.2006.323
