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Height Precision of SAR Altimeter and Conventional Radar Altimeter Based on Flight Experimental Data
Shi, Lingwei; Xu, Ke; Liu, Peng; Yang, Shuangbao; Wang, Lei; Yu, Xiufen; Xu, K (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, Key Lab Microwave & Remote Sensing Technol, Beijing 100190, Peoples R China.
Department微波遥感部
Source PublicationIEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
2016
Pages2676-2686
Language英语
ISSN1939-1404
AbstractCompared with conventional radar altimeter (CRA), synthetic aperture radar altimeter (SARAL) is a new generation radar altimeter with better height precision and along-track spatial resolution. As using synthetic aperture technique, SARAL data processing and waveform model are very different from CRA. To verify the performance and the data processing algorithm, an airborne experimental system of SARAL is developed. The experimental system was installed in Y-12 aircraft, and some valid data was obtained in October 2014. The echo data with SAR mode is obtained in the experiment and the echo data of CRA mode is extracted from SAR mode data. The two modes have the same observation targets and error sources and, then, their height measurement precisions are comparable. The results indicate that the rangemeasurement precision of SARALis improved about 1 times. The difference of the significant wave heights from the SAR mode data and CRA mode data is negligible.
KeywordAirborne Flight Experiment Conventional Radar Altimeter (Cra) Height Precision Saral
Conference NameIEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Conference DateJUL 26-31, 2015
Conference PlaceMilan, ITALY
Indexed ByEI ; CPCI
Document Type会议论文
Identifierhttp://ir.nssc.ac.cn/handle/122/5576
Collection微波遥感部
Corresponding AuthorXu, K (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, Key Lab Microwave & Remote Sensing Technol, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Shi, Lingwei,Xu, Ke,Liu, Peng,et al. Height Precision of SAR Altimeter and Conventional Radar Altimeter Based on Flight Experimental Data[C]:IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC,2016:2676-2686.
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