本文研究的是多顆氣象衛星的多信息源的數據同化問題，主要應用于城市溫度分布狀況的監測系統，在使用多源數據前，首先需要對數據進行同化處理。同化的方法是對不同衛星探測輻射值進行直接對比，然后進行投影變換幾何粗校正和圖像平移精校正，使多源數據在幾何位置上能得以高精度的配準。設計了軟件流程，編寫了ActiveX 組件，同化工作在服務器端完成，使用ODBC 對數據庫存取，最后利用實際遙感數據對系統進行了檢驗，獲得的結果符合反演使用的要求。
關鍵詞: 遙感信息處理；數據同化；極軌氣象衛星；多源數據
Designing for Thermal Infrared Data Assimilation of Meteorological Satellite CAO Jian-qing1,Hu Yong2,ZHU Shan-you2,YIN Qiu2, GONG Cai-lan2 (1.Shanghai Second Polytechnic University, Shanghai 201209,P.R.China 2. Shanghai Institute of Technical Physics, Shanghai 200083, P.R.China) Abstract: Assimilation of different satellite data is researched , it applies to the monitoring system of the urban temperature. The thermal infrared data from polar orbit meteorological satellites must be assimilated before they are used. The method of assimilation is direct comparison of radiance detected by different satellites, geometric rough correction by projection transform and precious correction by image transfer, it can register multi-sources data in geometric positions with higher precision. The procedure of the software is designed ,
ActiveX component is programmed. Assimilation code is executed in the server , accessing the database by ODBC. The system is tested by inputting actual remote sensing data finally, the result obtained accords with the demand.
Key words: Remote sensing information process; Data assimilation; Polar orbit meteorological satellite;Multi-sources data