Title :
A shadow percentage estimation method for Radar look angle selection in spaceborne INSAR application
Author :
Wang, Yu ; Liang, Xing-Dong
Author_Institution :
Nat. Key Lab. of Microwave Imaging Technol., Chinese Acad. of Sci., Beijing, China
Abstract :
Spaceborne INSAR (Interferometric Synthetic Aperture Radar) is an important remote sensing tool for topographic mapping, while there are inevitably shadow areas in Radar images. Shadow area has no radar echo signal or low coherence SNR (signal noise ratio). In this paper, Shadow area percentage estimation according to Radar look angle is proposed. Digital elevation model of natural terrains and ascending and descending orbits are used in simulation. This estimation method is suitable for incidence angle considerations in the phase of INSAR system design.
Keywords :
digital elevation models; radar cross-sections; radar imaging; radar interferometry; remote sensing by radar; spaceborne radar; synthetic aperture radar; INSAR system design; digital elevation model; incidence angle estimation method; low coherence SNR; natural terrains; radar echo signal; radar images; radar look angle selection; remote sensing tool; shadow area percentage estimation method; spaceborne INSAR application; topographic mapping; Cities and towns; Orbits; Radar imaging; Signal to noise ratio; Snow; Spaceborne radar; INSAR; Shadow; look angle;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2010 IEEE International
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-9565-8
Electronic_ISBN :
2153-6996
DOI :
10.1109/IGARSS.2010.5653027
