Parallel Conversion Algorithm of GF-3 Data Based on MapReduce and OpenMP Hybrid Programming
The successful networking of Gaofen-3 03 satellite with the Gaofen-3 01 and Gaofen-3 02 satellites forms China's first land-sea radar satellite constellation.Aiming at the issue of slow conversion of Gaofen-3 data by the PolSARpro software,this paper proposes an efficient parallel conversion algorithm according to the data format requirements of its software based on MapReduce and OpenMP hybrid programming,which can quickly and accurately convert GF-3 polarization data into S2 data format.The algorithm is implemented on the KingMap V9.0 software and tested using real Gaofen-3 data,which verifies the extendibility,efficiency,correct-ness and feasibility of the algorithm.
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