The Simulative Realization Of The Data Acquisition And Transmission Subsystem Of Small Satellite’s Camera

The subject of my thesis is supported by two items; the one is the state support program of science and technology-"the intelligent observation technology and applied range of the small remote sensing satellite"(the item number is2011BAH23B00). The other one is NSFC program-"the digital base-height ratio within the field of view of splicing camera model and accuracy evaluation mechanism"(the item number is11174017). The research is about building a simulative ground laboratory platform of small satellite and imitating the front camera by using CMOS imaging sensor. After storing the image data shot by front camera of the satellite, the images will be transferred to the ground station, we’ll make a ground-based laboratory simulation for the process.There are three points of the objective of this thesis:1. Have designed and completed the single imaging system which is based on the CMOS imaging sensor and successfully drive the CMOS imaging sensor by using FPGA as the control core to make clear image on VGA monitor, which provide basis for the control of multiple camera. To construct the storing and displaying system for multiple cameras, it needs to add a camera exposure synchronization controlling module and a store controlling module to the imaging system.2. Have designed and completed a set of wireless LAN transmission software, the functions of the software include sending file, folder. The sending control includes manual transmission, automatic transmission and timing transmission. It needs to show the percentage of the transmission for the file which is sending. It is also able to detect whether the network of the PC of the sender and receiver is connective. For the files that have been sent, it could create word document to record the file’s information which have been sent.3. Have built a wireless LAN transmission simulation hardware platform and done experiment on it. It turns out that the function of the software is well and the transmission speed reaches11MB/S which meets the requirements, and so do the other modules of the software.