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为了解决高速多通道CCD应用时数据传输路数多、数据率高的问题,研制了高速多光谱TDICCD的图像数据传输系统,并在实际工程应用中取得良好效果。阐述了系统总体设计思想和FPGA实现方案,并对FPGA功能划分、时分复用存储及LVDS接口等设计要点进行详细分析,最终系统实现了5片TDICCD共60通道并行图像数据转7路串行图像数据输出。实验结果表明,单路数据率最高达到1.38Gbit/s,系统总有效数据率达到8.66Gbit/s,且系统稳定可靠,方便移植。
In order to solve the problem of high data transmission rate and high data rate in the application of high speed multi-channel CCD, a high speed multi-spectrum TDICCD image data transmission system was developed and achieved good results in practical engineering applications. Elaborated the system overall design thought and the FPGA realization plan, and carried on the detailed analysis to the FPGA design division, the time-division multiplexing storage and the LVDS interface and so on the design essential point finally the system has realized 5 pieces TDICCD altogether 60 passways parallel image data turn 7 road serial images Data output. The experimental results show that the maximum single data rate is 1.38Gbit / s and the total system effective data rate is 8.66Gbit / s. The system is stable and reliable and easy to transplant.