教師資料查詢 | 類別: 期刊論文 | 教師: 魏世杰 Wei Shih-chieh (瀏覽個人網頁)

標題:Graphics processing unit implementation of the maximum likelihood solution to the inverse problem for retrieval of geophysical parameters from high-resolution sounder data
學年103
學期1
出版(發表)日期2014/08/13
作品名稱Graphics processing unit implementation of the maximum likelihood solution to the inverse problem for retrieval of geophysical parameters from high-resolution sounder data
作品名稱(其他語言)
著者Wei, Shih-Chieh; Huang, Bormin; Huang, Hung-Lung Allen
單位淡江大學資訊管理學系
出版者
著錄名稱、卷期、頁數Journal of Applied Remote Sensing 8(1), 084799(11 pages)
摘要The radiative transfer equation (RTE) describes the sounder observed radiance as a result of contribution from various surface properties, atmospheric temperature, and absorbing gas profiles. Retrieval of these geophysical parameters from the sounder data requires an inverse solution to the RTE problem. In the presence of noise in observation data, the maximum likelihood method is often used to find the most probable solution from an ensemble described by a probability density function. In recent years, general purpose graphics processing units with hundreds of computing cores have become more affordable for scientific computation. This work will explore the use of GPU in speedup of the maximum likelihood solution to the ill-posed retrieval problem. For the infrared atmospheric sounding interferometer high-resolution sounder having 8641 channels, the use of GPU on maximum likelihood estimation shows a promising speedup of 1986× compared to a single-threaded native CPU version.
關鍵字graphics processing unit;maximum likelihood method;radiative transfer equation
語言英文(美國)
ISSN1931-3195
期刊性質國外
收錄於SCI;EI;
產學合作
通訊作者
審稿制度
國別美國
公開徵稿
出版型式,電子版,紙本
相關連結
Google+ 推薦功能,讓全世界都能看到您的推薦!