This article presents a digital type electromagnetic radiation measurement system along with its schematic circuit diagram, high speed discrete data sampling method and FFT calculation methods.
本文详细介绍电磁辐射数字化测量系统，给出了电路原理图，离散化数据高速采样方法及FFT计算方法。
The reconstruction circuit was realized by the digital circuit, ensured the high speed and reduced memory requirement by processing unit.
重构电路由数字电路实现，在保证速度的前提下，减少了处理单元的存储器需要。
The design method of LED big screen scanning circuit is introduced, and the virtues of programmable logic device application on high-speed digital system are presented.
介绍了LED大屏幕扫描电路的设计方法，阐述了可编程逻辑器件在高速数字系统应用中的优点。
In the high speed digital circuit, signal integrity plays a key role.
在高速数字电路中，信号完整性问题至关重要。
RTD-based circuits have important applications in digital circuit, mixed signal circuit and optoelectronic system with the characteristics of ultra-high speed, low power and self-latching.
RTD基集成电路所具有的超高速、低功耗和自锁存的特性，使其在数字电路、混合信号电路以及光电子系统中有着重要的应用。
The module is made of high speed amplifier, AGC circuit, digital logical circuit, intensity modulator drive circuit, and intensity modulator.
该模块由高速前放电路，数字逻辑电路，强度调制器驱动电路，自动增益控制电路，以及强度调制器组成。
No CPU is needed for the fuzzy controller circuit. All algorithms are realized for high speed by digital logic circuits.
该模糊控制器电路不用cpu，全部算法由数字逻辑电路实现，具有运算速度快的特点，适合于需要高速控制的场合。
The high speed digital testing module is mostly used in test of digital circuit or digital system.
高速数字测试模块主要用于数字板卡和数字系统的测试。
Electromagnetic interference (EMI) in high-speed digital circuit is mainly generated by Common-mode (CM) noise, and the CM inductance is responsible for CM noise magnitude.
共模噪声是高速数字电路产生电磁干扰的主要原因，而共模电感又是共模噪声大小的决定因素。
Signal integrity theory is gaining increasing attention in high speed digital circuit design impedance matching plays an important role.
信号完整性理论在高速数字电路设计中日益被重视，阻抗匹配在信号完整性理论中占有重要地位。
This paper investigates a kind of cheap and new circuit for analogue-to-digital conversion with a performance to price ratio much higher than middle and high speed A/D converters.
本文介绍一种新型而廉价的A/D转换电路，其性能价格比大大高于目前已有的中高速模数转换电路。
CRC computing by software can hardly meet with the high speed digital system. Classic LFSR circuit and other algorithm that derived from software are generally adopting as hardware solutions.
用软件实现CRC校验码计算很难满足高速数据通信的要求，基于硬件的实现方法中，有串行经典算法LFSR电路以及由软件算法推导出来的其它各种并行计算方法。
These problems bring great challenges to the system hardware design, and designing high-speed digital circuit with good si performances has become the dominant factor of system design.
这些问题的出现给系统硬件设计带来了更大的挑战，高速数字电路的信号完整性设计已经成为能否成功的主要因素。
This thesis focuses on si problems in high-speed digital circuit.
本文研究了高速数字电路的信号完整性问题。
Undoubtedly, the essence of current high-speed digital circuit designs is still the analog ones.
可以说，当今高速数字电路设计的本质还是模拟电路设计。
The hardware unit is typical high speed digital circuit which is the current hot research point.
该系统的硬件模块是典型的高速数字电路，这是当今世界电路设计的一大热点。
With the rapid development of the electronic technology, high speed digital circuit design is larger and larger in proportion in whole electronic designing field.
随着电子技术的飞速发展，高速数字电路设计在整个电子设计领域所占的比例越来越大，如何处理高速信号问题已经成为一个设计能否成功的关键。
A compact circuit with enough wide frequency response is designed and the high speed digital oscilloscope TDS754C is used to measure pulse current of Partial Discharge (PD).
设计了具有较宽频率响应范围的紧凑型测试电路，结合高速数字示波器TDS75 4c对油中的局部放电脉冲波形进行了测量。
Demodulator separately extracted falling and rising edge in input signal, and then synthesized digital signal to a digital circuit, achieve high-speed demodulation circuit.
完成了可以将凹槽的下降边缘和上升边缘分开提取出来运放跟随器解调电路，实现电路的高速解调。
At high speeds, logic signals often appear hairy, jagged and distorted because of fast signal rise and fall time. We must avoid these phenomena in the high-speed digital circuit system.
数据速率的提高导致数字信号的上升沿和下降沿时间不断缩短、脉宽变窄和周期减小，从而使数字信号在传输过程中出现毛刺、扭曲和扩展等畸变现象。
Use the high-performance programmable logic device (CPLD) to realize the control of the digital circuit at high speed;
使用高性能的可编程逻辑器件（CPLD）实现高速数字电路的控制；
Use the high-performance programmable logic device (CPLD) to realize the control of the digital circuit at high speed;
使用高性能的可编程逻辑器件（CPLD）实现高速数字电路的控制；
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