相关实验视频
Updated: Jul 1, 2025

06:42
Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
9.0K
在光纤通道通信系统中实现基于网关阵列的现场可编程时钟同步
Huiya Xu1, Guangji Wang2, Lianping Guo1
1School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China.
The Review of scientific instruments
|March 4, 2024
概括
本研究介绍了一种使用光纤通道 (FC) 系统的现场可编程门数组 (FPGA) 的亚纳秒时钟同步方法. 该技术可确保高速通信链路的精确时间.
科学领域:
- 电气工程 电气工程
- 计算机工程 计算机工程
- 电信 电信服务 电信服务 电信服务
背景情况:
- 精确的时钟同步对于像光纤通道 (FC) 这样的高速串行通信系统至关重要.
- 现有的同步方法可能无法满足现代数据速率的严格时间要求.
研究的目的:
- 建议和评估FC通信系统的亚纳秒时钟同步方案.
- 为了利用现场可编程网关数组 (FPGA) 和IEEE 1588协议进行精确的计时.
主要方法:
- 使用FPGAs和嵌入式IEEE 1588协议实现了一个时钟同步方案.
- 采用数字双混合器时间差和数据恢复技术来测量相差.
- 在FPGA中使用混合模式时钟管理器进行时钟相补偿.
主要成果:
- 在12.5Gbps的FC通信系统中实现了亚纳秒钟同步.
- 实验结果证明了拟议的同步模块的有效性.
结论:
- 提出的基于FPGA的时钟同步方案有效地实现了亚纳秒精度.
- 这种方法适用于需要精确计时的高速FC通信系统.
相关概念视频
Time and frequency -Domain Interpretation of Phase-lag Control
92
Phase-lag controllers are widely used in control systems to improve stability and reduce steady-state errors. A dimmer switch controlling the brightness of a light bulb serves as a practical example of phase-lag control, gradually adjusting the bulb's brightness. Mathematically, phase-lag control or low-pass filtering is represented when the factor 'a' is less than 1.
Phase-lag controllers do not place a pole at zero, but instead influence the steady-state error by amplifying any...
Phase-lag controllers do not place a pole at zero, but instead influence the steady-state error by amplifying any...
92
Load-frequency control
162
Load-frequency control (LFC) is vital for maintaining power system stability, ensuring that frequency and power flows remain within acceptable limits during load changes. Turbine-governor control eliminates rotor accelerations and decelerations following load changes. However, a steady-state frequency error persists when the change in the turbine-governor reference setting is zero. In an interconnected power system, each area agrees to export or import a scheduled amount of power through...
162
Time and frequency -Domain Interpretation of Phase-lead Control
84
Phase-lead controllers are commonly used in various control systems to enhance response speed and stability. Adjusting the brightness on a television screen offers a practical example of phase-lead control. When contrast is enhanced, a phase-lead controller is employed. Mathematically, phase-lead control is identified when the first parameter is smaller than the second.
The design of phase-lead control involves the strategic placement of poles and zeros to balance steady-state error and system...
The design of phase-lead control involves the strategic placement of poles and zeros to balance steady-state error and system...
84
Network Function of a Circuit
290
Frequency response analysis in electrical circuits provides vital insights into a circuit's behavior as the frequency of the input signal changes. The transfer function, a mathematical tool, is instrumental in understanding this behavior. It defines the relationship between phasor output and input and comes in four types: voltage gain, current gain, transfer impedance, and transfer admittance. The critical components of the transfer function are the poles and zeros.
290

