根据距离选通微光ICCD组件及水下高速成像组件中对于门控电路的需求, 本文解决了在外触发模式下, 系统输出脉冲与外触发之间的同步效果差与抖动大问题, 提出一种基于FPGA精细调节单元IODELAY的高精度低抖动的同步脉冲控制技术。此单元具有受温度影响小、时间分辨率高的优势, 充分满足了组件中像管对于门控时间精度与抖动的要求, 此技术在各类门控组件中有很好的应用价值。

According to the requirements of gate-control circuit in range-gated low-light-level ICCD components and underwater high-speed imaging components a high accuracy and low jitter synchronous pulse control technique based on FPGA fine adjustment unit IODELAY was proposed to solve the synchronization and the jitter problem between the output pulse and the external trigger. This unit has the advantage of small temperature effect and high time resolution, which fully meets the requirements of the gated-control time precision and jitter of the image tube in the component. This technology has good application in all kinds of gate control components.