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A spaceborne LFM scatterometer for ocean surface wind vector measurement-a time domain approach

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3 Author(s)
Pillai, N.S. ; Space Appl. Centre, Ahmedabad, India ; Jha, A.M. ; Misra, T.

The limitations of the currently used continuous-wave-pulse (CW-pulse) spaceborne scatterometers for wind-vector retrieval are reviewed. The disadvantages due to purely time-domain or frequency-domain (Doppler filtering) approaches are described. To overcome the limitations of these methods, a modified scheme is proposed wherein the pulse transmitted is linearly frequency modulated (LFM) and the processing is carried out in the time domain. This method is described and compared with other techniques to highlight the improved results obtainable with this LFM technique

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Geoscience and Remote Sensing, IEEE Transactions on  (Volume:26 ,  Issue: 5 )