Title :
Geolocation of HJ-1C satellite image using one GCP
Author :
Jiayin Liu ; Xiaolan Qiu ; Yuxin Hu ; Wen Hong
Author_Institution :
Key Lab. of Technol. on Geo-spatial Inf. Process. & Applic. Syst., Beijing, China
Abstract :
HJ-1C satellite was launched in November 2012 as the first civil spaceborne SAR system of S band in China. Since the image geolocation is essential for the quantificational study of the system specifications of HJ-1C, the paper focuses on the geolocation of HJ-1C SAR image, including the systematic position accuracy of HJ-1C satellite image, and the higher position accuracy with GCPs(ground control point). In addition, a novel equivalent-range-doppler method is presented in this paper to geolocate HJ-1C satellite image using only one GCP.
Keywords :
geophysical image processing; geophysical techniques; remote sensing by radar; synthetic aperture radar; AD 2012 11; China; HJ-1C SAR image; HJ-1C satellite image; HJ-1C system specifications; S band; civil spaceborne SAR system; equivalent-range-doppler method; ground control point; image geolocation; Accuracy; Equations; Geology; Mathematical model; Satellites; Spaceborne radar; Synthetic aperture radar; GCP; HJ-1C satellite; equivalent-range-doppler model; image geolocation;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2014 IEEE International
Conference_Location :
Quebec City, QC
DOI :
10.1109/IGARSS.2014.6947562
