Imaging Mode And Data Processing Study Of Multi-mode Aerial Digital Camera (MADC)

It is an important direction of international remote sensing technologies to develop aerial large array CCD digital remote sensing system. The development and digital progress of national aerial digital remote sensing technologies and photography devices will be greatly pushed about, and sharply descend the depends on foreign products of the same kind.What's more, the rapid improvement of China society and economics urgently requires large amount of high precision and high special resolution remote sensing images. Aerial large array CCD digital remote sensing system will just meet the requirement as it can obtain surficial information high availability.In order to follow the currency, hyperspectral research group of Institute of Remote Sensing Application, CAS pushes out a multi-mode airborne digital camera system, what is called MADC for short.MADC system is combined with 3 digital cameras, which each has a large array CCD as 4K X 4K. With different position and pose, the cameras can be combined to form different imaging modes, which are Wide Field, Multispectral, and Stereophotography mainly. MADC system can also be linked with Position and Orientation System (POS), and its cameras can be controlled to expose synchronistically associating with POS data according to regular time set by shutter control system. POS system can be seemed as the combination of GPS and IMU (Inertial Measurement Unit), and its data can show the spatial position and pose of aerial platform. To do geometric correction of remote sensing images aiding with POS data, it can get rid of the limitation of ground control points (GCP). So combined with normal aerial digital photographic devices, multi modes, multi spectral, and association with POS are the important characters of MADC.This paper studies the imaging mechanism of each working mode of MADC, the calibration of MADC and the methods to correct MADC data with POS information for the fist time at home. The main contents include 7 aspects as showed below.(1) Simplifying the geometric relationship of MADC's cameras. By abstracting, the thesis gets the basic imaging mode of MADC and does detailed researches to the geometric of spacial projection. And the paper gets some important conclusions and...