HAN Hong-xia, SI Guo-liang, CAO Li-hua, et al. Design of digital video signal fiber transmission system in optic-electronic tracker[J]. Optics and precision engineering, 2010, 18(5): 1219-1125.
HAN Hong-xia, SI Guo-liang, CAO Li-hua, et al. Design of digital video signal fiber transmission system in optic-electronic tracker[J]. Optics and precision engineering, 2010, 18(5): 1219-1125.DOI:
Design of digital video signal fiber transmission system in optic-electronic tracker
To improve the bandwidth of digital video transmission of an optic-electronic tracker
enhance the anti-jamming performance of the system and ease the workload of a slip-ring
a fiber transmission system for high-speed digital video image signals was designed. By making use of the anti-jamming and high bandwidth characteristics of the fiber data transmission technology
the image transmission quality was improved and the transmission capacity was enlarged. At the sending end
the parallel digital video signals were serialized and the serial data were transferred into optical signals by a fiber module. At the receiving end
the optical signals were transferred back into the electronic signals by another fiber module
and the serial data were de-serialized back to the parallel data format. The frame signals
line signals and data signals were transmitted together and the processed clock signals were transmitted separately as system clock signals. Experiment results indicate that the image signals can be correctly transmitted by the fiber transmission system
and the bandwidth and the clock frequency have been up to 1.25 Gbit and 62.5 MHz
respectively. Furthermore
the data transmission latency of the system is less than 236 ns
and the clock edge can be located at the valid data position.