多通道视频信号处理芯片测试筛选系统设计与实现
[Abstract]:CCD imaging system is widely used in various fields, especially in military and national defense, each country is actively building its space-based satellite reconnaissance system to deal with the future high-tech war. The current CCD imaging system is mainly composed of the front end CCD signal source and the back end video signal processing chip. As an important part of CCD imaging system, video signal processing chip plays an important role in its performance. The main purpose of this paper is to design a multi-channel video signal processing chip test and screening system. The system consists of data download host computer, hardware system board and image acquisition software. The hardware system is divided into two parts, including FPGA main system board and multi-channel chip test board. The main functions of the system are as follows: the register configuration data and image data of the four-channel video signal processing chip are downloaded to the FPGA system board by the PC upper computer through the USB module; On the one hand, the FPGA system board configures the multi-channel configuration data to the multi-channel video signal processing chip through the SPI interface. On the other hand, the image data is converted into digital CCD signal and the analog CCD signal is converted to the video signal processing chip through the D / A of the back end. Finally, the output four-channel serial differential data is decoded and cached, and then uploaded to the PC through the Cameralink image acquisition interface to evaluate and analyze the performance of the multi-channel video signal processing chip. Through the actual test, the system achieves the desired effect and can complete the testing of the multi-channel video signal processing chip.
【学位授予单位】:西安电子科技大学
【学位级别】:硕士
【学位授予年份】:2015
【分类号】:TN407
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