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Application of Compressive Sensing to Radar Altimeter Design
Zhang, Yunhua; Dong, Xiao; Zhai, Wenshuai; Zhang, YH (reprint author), Chinese Acad Sci, Key Lab Microwave Remote Sensing, POB 8701, Beijing 100190, Peoples R China.
Department微波遥感部
Source PublicationREMOTE SENSING OF THE OCEAN, SEA ICE, COASTAL WATERS, AND LARGE WATER REGIONS 2015
2015
Pages963809
Language英语
ISSN0277-786X
ISBN978-1-62841-848-4
AbstractWWe propose to apply the compressive sensing technique to the design of satellite radar altimeter for increasing the sampling time window (STW) while keeping the same data rate so as to enhance the tracking robustness of an altimeter. A satellite radar altimeter can measure the range between the satellite platform where it is aboard and the averaged sea surface with centimeter level accuracy. The rising slope of the received waveform by altimeter contains important information about the sea surface, e.g. the larger the slope of the waveform, means the smoother the sea surface. Besides, the half-power point of the slope refers to the range information. For satellite altimeter, due to the rising slope just occupies fewer range bins compared with the whole range bins illuminated by the long pulse signal, i.e. the signal is sparse in this sense, thus compressive sensing technique is applicable. Altimeter echoes are simulated and the waveforms are constructed by using the traditional method as well as by compressive sensing (CS) method, they are very well agreed with each other. The advantage of using CS is that we can increase the sampling time window without increasing the data, thus the tracking capability can be enhanced without sacrificing the resolution.
KeywordInterferometric Radar Altimeter Interferometric Phase Echo Waveform Sampling Time Window (Stw) Compressive Sensing (Cs) Downsampling
Conference NameConference on Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions
Conference Date42270
Conference PlaceToulouse, FRANCE
Indexed ByEI ; CPCI
Document Type会议论文
Identifierhttp://ir.nssc.ac.cn/handle/122/5362
Collection微波遥感部
Corresponding AuthorZhang, YH (reprint author), Chinese Acad Sci, Key Lab Microwave Remote Sensing, POB 8701, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Zhang, Yunhua,Dong, Xiao,Zhai, Wenshuai,et al. Application of Compressive Sensing to Radar Altimeter Design[C],2015:963809.
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