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同步脉冲

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The function of pulse power system of LIA is generating accelerative pulse and providing it toaccelerate electronic beam synchronously.

在直线感应加速器中,脉冲功率系统的作用是向加速器提供与被加速电子束同步的加速脉冲。

CLOCK SIGNAL, A continuous string of pulses used for synchronization.

时钟脉冲,用于同步的连续脉冲信号串。

According to pulse oddment counting principle,a pulse signal counting circuit for differential ring lasers is designed based on XC3S400AN,a kind of FPGA chip with high performance.

根据脉冲零头计数原理,应用高性能的FPGA芯片XC3S400AN,基于VHDL结构描述语言,对高精度高频率时钟信号进行时序控制及同步处理,设计出一种四频差动激光陀螺脉冲信号计数电路,并进行了实验测试。

According to pulse oddment counting principle, a pulse signal counting circuit for differential ring lasers is designed based on XC3S400AN, a kind of FPGA chip with high performance. The structure of the circuit is described in VHDL language and realized through sequence control and synchronization process of high accuracy/frequency clock signal.

根据脉冲零头计数原理,应用高性能的FPGA芯片XC3S400AN,基于VHDL结构描述语言,对高精度高频率时钟信号进行时序控制及同步处理,设计出一种四频差动激光陀螺脉冲信号计数电路,并进行了实验测试。

Synchronous signal integral with the phase shift signal,and has the ability of resisting synchronous signal high frequency interference and wave distortion.

它是利用同步信号送入专用集成触发电路TCA785,经过同步过零,放电监控,同步寄存器,控制比较,脉冲形成与分配,最后触发可控硅电路。

Third, it has a discussion on the development of modern and traditional artificial neural network technology and their application in image processing. It summaries that the model of the Pulse-coupled neural network based on Elkhorn's model of the cat visual cortex was constructed according to the mammalian vision systems. The nonlinear modulation property, which is a generic and pervasive biological pulse-coupling mechanism, is used in the construction of PCNN. So, PCNN finds many applications in image processing, including segmentation, edge extraction et al. As all known, the performance of the image segmentation depends not only directly on the adjustment of PCNN parameters and the statistical properties of image but also on the cyclic iteration times N of PCNN. If the parameters have been properly set, it turns out to be essential to select a suitable criterion to determine N.

回顾了神经网络技术的现状,指出传统人工神经网络只利用了生物神经元有限的属性进行模型构建,而90年代产生的脉冲耦合神经网络充分利用了哺乳动物视神经网络特有属性,其神经元模型除了考虑生物神经元特有的线性相加、兴奋与抑制属性外,还考虑到生物神经元特有的非线性相乘调制耦合特性;考虑了哺乳动物视神经系统视野受到适当刺激时,相邻连接神经元同步激发产生35Hz~70Hz振荡脉冲串特性等,所以PCNN网络模型更靠近真实生物视觉特性,特别是哺乳动物视神经网络,特别适合计算机图像处理应用,尤其在生物细胞图像分割、图像平滑、降噪及图像中目标的分类、计数等方面的研究。

By isualization the phased array pulse with a strobed photoelastic system the real picture can be seen.

使相控阵脉冲和光弹系统同步,而可以看到超声脉冲传播的真实照片。

A bipolar pulse gener AT or with A valanche Transistor is introduced which uses two paralleled tubes to enhance the amplitude of the output pulse. Meanwhile the power supply voltage can be adjusted, so better synchronous triggering can be performed.

介绍了一种双极性雪崩三极管脉冲产生器电路;电路采用双管并联以增大输出脉冲的幅度,并采用调节电源电压的方法来达到良好的同步触发。

Free-running frequencies of the oscillators are set slightly below the horizontal and vertical pulse rates, and the stripped pulses are used to trigger the oscillators prematurely and thus to synchronize them to the line and half-frame rates half-frame because United States television interlaces the

将振荡器的自由振荡频率设置得略低于水平和垂直脉冲频率,剥离出来的脉冲用于提前触发振荡器从而使振荡器与行频和半帧频同步(由于美国电视在交替的垂直扫描时进行隔行扫描,所以是半帧频)。

Then, two methods of timing synchronization based on the cyclic prefix and pilot sequence were introduced, and a novel timing synchronization method based on pilot sequence was presented, which provided a correlation peak with pulse shape.

由于OFDM系统中的定时同步要求和无线定位中的测时测距在本质上是一致的,所以本文紧接着分析了基于循环前缀和导频序列的两种定时同步方法,并提出了一种新的基于导频序列的具有脉冲形状相关峰的定时同步方法。

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As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。