System Integration And Simulation Of Remote Sensing Based On Lai

The development of optical imaging Simulation is introduced, and space remote sensing image simulation process based on the leaf area index and other surface parameters is studied in the paper, which anglicizing the surface reflectivity, atmospheric radiation transfer and optical sensor theory. In this paper the model and method for LAI is researched and the generating ideas about earth's surface albedo based in priori knowledge is established. The radiative transfer model based on the input parameters of MODTRAN4 are in deep analysis. determining the parameters of the interpolation method and points, the atmospheric look-up-table are constructed with the spline and linear interpolation.In this paper, sensor spatial response, spectral response and the process of sampling and quantization are also introduced. Matlab is used to write the procedure of process, integrating the space remote sensing image simulation system. LAI data is input in this system, simulating for the different atmospheric conditions and sensor, and finally got the image of any sensors.