教師資料查詢 | 類別: 會議論文 | 教師: 魏世杰WEI SHIH-CHIEH (瀏覽個人網頁)

標題:Vector quantization with self-resynchronizing coding for lossless compression and rebroadcast of the NASA Geostationary Imaging Fourier Transform Spectrometer (GIFTS) data
學年97
學期1
發表日期2008/08/01
作品名稱Vector quantization with self-resynchronizing coding for lossless compression and rebroadcast of the NASA Geostationary Imaging Fourier Transform Spectrometer (GIFTS) data
作品名稱(其他語言)
著者Huang, Bormin; Wei, Shih-chieh; Huang, Hung-lung; Smith, William L.; Bloom, Hal J.
作品所屬單位淡江大學資訊管理學系
出版者SPIE
會議名稱Proceedings of the SPIE 7084, Satellite Data Compression, Communication, and Processing IV, 708408 (5 September 2008)
會議地點San Diego, USA
摘要As part of NASA's New Millennium Program, the Geostationary Imaging Fourier Transform Spectrometer (GIFTS) is an advanced ultraspectral sounder with a 128x128 array of interferograms for the retrieval of such geophysical parameters as atmospheric temperature, moisture, and wind. With massive data volume that would be generated by future advanced satellite sensors such as GIFTS, chances are that even the state-of-the-art channel coding (e.g. Turbo codes, LDPC) with low BER might not correct all the errors. Due to the error-sensitive ill-posed nature of the retrieval problem, lossless compression with error resilience is desired for ultraspectral sounder data downlink and rebroadcast. Previously, we proposed the fast precomputed vector quantization (FPVQ) with arithmetic coding (AC) which can produce high compression gain for ground operation. In this paper we adopt FPVQ with the reversible variable-length coding (RVLC) to provide better resilience against satellite transmission errors remaining after channel decoding. The FPVQ-RVLC method is compared with the previous FPVQ-AC method for lossless compression of the GIFTS data. The experiment shows that the FPVQ-RVLC method is a significantly better tool for rebroadcast of massive ultraspectral sounder data.
關鍵字
語言英文
收錄於
會議性質國內
校內研討會地點
研討會時間20080801~20080801
通訊作者
國別美國
公開徵稿Y
出版型式紙本
出處Proceedings of the SPIE 7084, Satellite Data Compression, Communication, and Processing IV, 708408 (5 September 2008)
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