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小卫星相机数据获取与传输子系统的模拟实现

The Simulative Realization of the Data Acquisition and Transmission Subsystem of Small Satellite’s Camera

【作者】 熊远

【导师】 杨福兴;

【作者基本信息】 北京邮电大学 , 机械电子工程, 2013, 硕士

【摘要】 本论文课题得到国家科技支撑计划“遥感小卫星智能观测技术与应用示范(项目编号:2011BAH23B00)"和国家自然科学基金“内视场拼接相机的数字基高比模型与精度评价机理(项目编号:11174017)”的支持。论文研究围绕着搭建小卫星地面实验室仿真研究平台,用CMOS图像传感器模拟小卫星前端相机,对小卫星前端多相机拍摄的图像数据进行存储后再将其往地面进行传输这个过程进行一个地面实验室模拟。本论文做的工作主要有几下三点:1.设计并实现基于CMOS图像传感器的单路成像系统,本系统采用FPGA为控制核心,完成CMOS图像传感器的数据采集,并能在VGA上实现同步显示。本系统为实现多路相机的控制提供了技术基础,控制多路相机的同步拍摄则需在多个单路成像系统上添加相关相机曝光同步控制等多个模块。2.设计并实现一套无线传输模拟软件,主要包括发送文件和文件夹;发送控制包含手动发送、自动发送、定时发送;对于正在发送的文件需要显示其已传输百分比;能检测发送端和接收端网络是否连接好;对于已经传送完毕的文件能进行Word报表生成,以进行信息记录等。3.搭建无线传输模拟平台并完成相关实验,经过测试。文件传输速率能达到11MB/S,其余模块功能满足要求。

【Abstract】 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.

【关键词】 单路成像I2C网桥无线传输
【Key words】 Single ImagingI2CNetwork BridgeWireless Transmission
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