Abstract:

WT5BZ]The satllite remote sensing image processing system described in this paper can be used both on ship and on land and is developed for the purpose of ship route weather forecast of Chinese Antarctic Expedition and sea ice forecast and navigator in Antarctic sea ice region. Adopting the new quick visual programming software DELPHI, developing a 32-bit program suitable to run under the Windows'98 32 bit environment. the nwly devloped receiving system using the WINDOW RXD technology, improving the reliability of real time receiving under the multi task environment under WINDOWS 98. The using of object oriental programming method and open system structure makes it possible to improve and renovate it's function. Using SGP4/SDP4 orbit model and two line elements of orbit parameter to compute the latitude and longitude of the satellite's sub satellite point then developing the program to compute the latitude longitude of all points on the frame line decided by the sub satellite point. Realizing the function to find out every point's latitude and longitude on the 1A image directly and dynamically and completing the quick locating and image displaying function. Using SGP4/SDP4 orbit model and two line elements of orbit parameter to compute the latitude and longitud of the satellite's sub satellite point then developing the program to compute the latitude longitude of all points on the frame line decided by the sub satellite point. Realizing the function to find out every point's latitude and longitude on the 1A image directly and dynamically and completing the quick locating and image displaying function. Using iterating method to draw coastal lines and topography lines on the 1A image according to the electronic map data. this quick and flesible multi function system can be used not only on the ship but also on the land and can display and adding latitude longitude lines and topogsaphy lines in 1-2 minutes. Resolving the difficulty to monitoring Antarctic sea ice and forecast of sea ice slot and free water route. Being capable of making the image scrolling up and down, moving left and right, zooming in and out and cutting and copying freely. It can display any point's geographical location according to mouse moving. Capable of marking any objects on the image like ship position, station position and islands. It can be used to draw the ship route on the image and judge the position of the ship and the surrounding meteorology, marine and sea ice condition on the ship route visually. No reference object during voyaging over the ocean is no longer a problem. It can output 24 bit color satellite image of any size. It has many multi channel incorporating processing model, which can be used to display sea ice, iceberg, cloud, temperature, forest fire and anomaly changes in the ocean and on the land. This system has played an important role in ship routing weather forecast and navigating in sea ice region during the 14,15 and 16 Chinese Antarctic Scientific Expedition and Chinese First Arctic Scientific Expedition. Providing important thereunder in the research on the Arctic and Antarctic sea ice atmosphere interation. [WT5HZ]