Proceedings of the KSRS Conference (대한원격탐사학회:학술대회논문집)
- 2002.10a
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- Pages.484-489
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- 2002
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- 1226-9743(pISSN)
A BANDWIDTH VARIABLE DIGITAL GENERATOR FOR RADAR ALTIMETER
- Lin, Ying (National Microwave Remote Sensing Laboratory Center for Space Science & Applied Research, Chinese Academy of Sciences) ;
- Liu, Heguang (National Microwave Remote Sensing Laboratory Center for Space Science & Applied Research, Chinese Academy of Sciences) ;
- Liu, Zhiqlang (National Microwave Remote Sensing Laboratory Center for Space Science & Applied Research, Chinese Academy of Sciences) ;
- Xu, Ke (National Microwave Remote Sensing Laboratory Center for Space Science & Applied Research, Chinese Academy of Sciences) ;
- Zhang, Xuabgjyb (National Microwave Remote Sensing Laboratory Center for Space Science & Applied Research, Chinese Academy of Sciences)
- Published : 2002.10.01
Abstract
This paper concerns the design and implementation of a Bandwidth Variable Digital Chirp Generator (DCG) for the radar altimeter. A double SRAM parallel structure is used to breakthrough the upper DCG bandwidth limited by the highest clock frequency of the digital chips. An experimental system working in the waveform storage method has been implemented. We show that the bandwidth changed according to the radar altimeter's requirement and the design released the stringent speed requirement of the chips fur making a variable wide bandwidth DCG.