Research And Design Of Optical Transmission System For Digital Video Based On FPGA

With the development of communication technology, video transmission system has become an important part in modern industrial management, safety precaution, urban transport because of its convenient, real-time, accurate characteristics.At the same time, with the large capacity, high security, strong anti-interference ability, transmission distance of The optical fiber transmission, it has attracted more and more attention.With digital technology, time-division multiplexing technology, this thesis presents a detailed design of optical transmission system for multi-channel uncompressed digital video based on FPGA.The system has thress modular circuit: A / D converter, D / A converter and data processing circuit base on FPGA which are implemented. Control function of 10, simulation of data multiplexer and demultiplexer, clock divider have been completed. Also the function of video signal A/D and D/A has been implemented. Finally realized eight-way video signal transmission in an optical fiber at the same time, The video picture is clean-out and there is no candy strip in the screen. The video picture and the electrical interfaces are in line with national standards. So this system has highly integrated and Flexibility. It can be used in the video surveillance systems and security systems.