Title :
Approximation Eerror in Differential SAR Interferometry
Author :
Sun, Xilong ; Yu, Anxi ; Cai, Bin ; Liang, Diannong
Author_Institution :
Space Electron. Inf. Technol. Inst., Nat. Univ. of Defense Technol., Changsha
Abstract :
Two approximations are used in "Three-pass" D-InSAR (Differential SAR Interferometry). First, in this paper, the error caused by the approximations is deduced and defined as First-order Approximation Error. Then, the characteristics of First-order Approximation Error are discussed in theory and proved by two experiments. In the end, three viable and effective methods are put forward to correct approximation error.
Keywords :
error correction; image processing; radar interferometry; synthetic aperture radar; topography (Earth); Differential SAR Interferometry; First-order Approximation Error; Three-pass D-InSAR; Approximation error; Computer errors; Educational institutions; Equations; Forward error correction; Information technology; Interferometry; Space technology; Sun; Synthetic aperture radar; Differential SAR Interferometry; First-order Approximation Error; error correction;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2008. IGARSS 2008. IEEE International
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-2807-6
Electronic_ISBN :
978-1-4244-2808-3
DOI :
10.1109/IGARSS.2008.4779845
