Title :
A method to estimate baseline and platform altitude for SAR interferometry
Author_Institution :
Dept. of Electron. & Comput. Eng., Gifu Univ., Japan
Abstract :
A method to estimate baseline parameters for SAR interferometry is described in the paper. The proposed method uses three interferograms by three observations. This method is applied to ERS-1 SAR data. The result shows that baseline parameters are estimated with residual phase difference RMS error of less than 20° (about one-twentieth of a cycle), while initial phase difference error calculated by using orbit information is more than 2100° (several cycles)
Keywords :
geophysical signal processing; radar imaging; radiowave interferometry; remote sensing by radar; synthetic aperture radar; topography (Earth); ERS-1 SAR data; SAR interferometry; baseline; initial phase difference error; platform altitude; residual phase difference RMS error; Extraterrestrial measurements; Geometry; Interferometry; Parameter estimation; Radar antennas; Sea measurements; Sea surface; Spaceborne radar; Surface topography; Synthetic aperture radar;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1995. IGARSS '95. 'Quantitative Remote Sensing for Science and Applications', International
Conference_Location :
Firenze
Print_ISBN :
0-7803-2567-2
DOI :
10.1109/IGARSS.1995.519689
