Abstract:The optical fiber communication technology is adopted to transmit data image with high frame rate and high resolution in order to improve the anti-interference, transmission speed and bit error rate of the photoelectric tracking equipment. The long-distance transmission technology is mainly utilized in this design for Cameralink high-speed digital images, a full-mode Cameralink digital image optical transceiver end is studied based on Field-Programmable Gate Array(FPGA), including FPGA chip, Cameralink interface module, Small Form-factor Pluggables(SFP) optical module, Cameralink decoding module, mode control module. The functions of each module are mainly as follows: Cameralink interface module is utilized to receive Cameralink information and send the received information to Cameralink decoding module; Cameralink decoding module decodes the serial data and sends it to the serial-parallel signal conversion module; the signal conversion module performs serial-to-parallel conversion on the received digital image signal to form a serial data stream; the SFP optical module receives the serial data stream and converts it into an optical fiber signal; the mode control module controls the working mode of the transmitting end. This design can realize the data transmitting and receiving of infrared image in resolution of 640×512 and a frame rate of 100 Hz. It has finished several environment tests and is applied in engineering.
