data(datum)
8.performance ,such as Front Launching Infrared System, medical thermal imaging system and so on, whose modulate transfer function (MTF) and Noise equivalent temperature difference (NETD) of the data table and graph is within 10% ? 20% error than the outdoors experimentation?s datum. It basically obtained the thesis demand to replace the outdoors experiments and meet the requirement for using and second researching.
10.Meanwhile, require characteristic of data by database according to GIS to space, one nested tree type that Terrain Object Set (TOS) structure carry on method of encapsulation to space datum was put forward and utilized specialized some demand according to land in the paper. And, some expansion nature designs and realize the method that the surface feature is collected.

