当PFD在锁定模式中不生成脉冲时,电荷泵不提供电荷给环路滤波器。
When the PFD does not generate pulses in lock mode, the charge pump does not provide charge to the loop filter.
在正常(非校准)操作下,雷达发射器生成脉冲压缩波形,并通过天线发射它。
Under normal (non-calibration) operation the radar transmitter generates a pulse compression waveform and transmits it via the antenna.
相位频率检测器比较基准时钟信号和反馈时钟信号从而在一个或更多个输出信号中生成脉冲。
A phase frequency detector compares a reference clock signal to a feedback clock signal to generate pulses in one or more output signals.
当基准和反馈时钟信号的相位和频率相同时,PLL处于锁定模式,且PFD输出信号中不生成脉冲。
When the phase and frequency of the reference and feedback clock signals are the same, the PLL is in lock mode, and the PFD does not generate pulses in its output signals.
物理学家曾指出,用来生成中微子的质子脉冲,它在离开欧洲核子研究中心时约有10.5微秒长的持续时间。
Physicists had pointed out that the proton pulses that were used to generate the neutrinos that left CERN were of quite long durations, at 10.5 microseconds.
在收到停止位之后,设备将通过拉低数据线,生成最后一个时钟脉冲来应答收到的字节。
After the stop bit is received, the device will acknowledge the received byte by bringing the Data line low and generating one last clock pulse.
这个脉冲星本身,生成了,6乘以10的31次方瓦。
This pulsar alone, however, generates the six times 31 watts.
论文按照国家标准设计不同车速下平顺性随机输入及脉冲输入下虚拟行驶试验,并在设计过程中编制了试验所需的路面谱生成程序。
According to the national criterion: Method of random input running test and Method of pluse input running test, the virtual road tests on the vehicle ride comfort are designed.
提出了一种高速低功耗脉冲寄存器的设计方法,并将其应用在高速DSP地址生成单元的设计中。
This paper proposes a high speed and low power pulse latch design, and integrates it to high speed DSP address generator.
每个脉冲在衰减电路中生成响应,其根据已知的衰减响应而随着时间衰减。
Each pulse generates a response in the decay circuit that decays over time according to a known decay response.
所得到的校准脉冲用于生成校准滤波器。
The resulting calibration pulses are used to generate a calibration filter.
数字化设计是本系统的特点,系统最终生成的三相spwm脉冲是基于三相正弦调制波和三角载波比较得到的。
Digital design is the main character of this system. The three-phase SPWM pulses are generated through sine wave compared with triangular wave.
针对圆(近圆)轨道航天器相对运动的固定时间状态转移问题,提出了一种基于导航点的多脉冲优化轨迹生成策略。
An optimal trajectory generation strategy based on way-points is presented to solve the fixed-time state transition for spacecraft relative motion in a circular orbit.
本文用有限差分法对金属钛表面脉冲激光生成氮化钛薄膜过程的温度场进行了三维数值模拟计算。
In this paper, numerical simulation for TiN films generated on titanium surface using laser gas alloying (LGA) method is performed by finite difference method.
本发明涉及电子电路,更具体地,涉及生成具有最小脉冲宽度信号的相位频率检测器。
The present invention relates to electronic circuits, and more particularly, to phase frequency detectors that generate signals having minimum pulse widths.
脉冲电压峰值和放电频率与臭氧生成速率均几乎有线性关系。
The ozone formation rate increased linearly with increasing pulsed peak voltage and discharge frequency.
因质量的大小而形成脉冲星、中子星、夸克星,质量大到一定值的生成黑洞。
Pulsars, neutron stars and quark stars are then created based on their mass.
本文提出和实验展示了一种基于光门的方案来生成弱相干(近似非相干)的宽带光脉冲。
An optical gate based scheme for generating weakly coherent (approximately incoherent) broadband optical pulses was proposed and experimentally demonstrated.
通过在特定时刻对DDS生成的信号进行补相,可以使单dds同时生成多个目标的与被测雷达全相参的常规脉冲和线性调频回波信号。
By setting the DDS's offset phase at given time, a single DDS can generate multi-target phase-coherence signals including LFM and general pulse for evaluated radar.
通过键盘及代码生成电路、编码、脉冲调制振荡和红外发射构成红外发射电路。
Through keyboard and code generation circuit, coding and pulse modulation vibration with infrared project to form infrared project circuit.
用束团同步信号触发波形发生器,生成窄脉冲;
Triggered by the in-phase signal, the waveform generator outputs a pulse burst.
研究了一种可控脉冲声生成技术,介绍了声源设计方案以及脉冲声工作生成的主要原理。
Including the principles and the source design, a method of digitally-controlled sound impulse generator is introduced.
论文采用模块化的设计思路对模拟器软体进行了开发,模拟软体能完成场景设置、脉冲描述字生成、多信号脉冲排序、脉冲重叠处理等功能。
The simulation software is designed based on modularization method. it can fulfill the function of scene setting, PDW production, pulse sort and overlapping disposal.
目的研究电脉冲介导的质粒红细胞生成素(EPO)基因肌肉转移效率以及对肾性贫血的治疗作用。
Objective to investigate the effects of erythropoietin (EPO) gene transfer into skeleton muscle mediated by electroporation on renal anemia.
研究了内、外部方式控制、脉冲时序生成和驱动控制以及位置控制等控制方法。
The whole control algorithm is studied and divided into three parts including pulse-generation, step motor control and position control.
以现场可编程门阵列(FPGA)作为触发脉冲生成器,精确性高,并具有相序自适应性。
The digital trigger to silicon controlled rectifier based on field programmable gate array (FPGA) has high accuracy and the ability of phase self-adjusting.
而对于SPWM逆变,采用数字电路实现SPWM触发脉冲的生成,在消除谐波、提高开关频率、简化电路结构,提高集成度和可靠性等方面,取得了很好的效果。
The digital circuits are introduced in the SPWM inversion, which have brought the elimination of harmonics, high switching frequency, simplified circuits and high reliability.
并将生成信号经低通滤波器处理,从而最终得到了一个能够充分反映电视图像脉冲性、频率、幅度和带宽特点的较为逼真的信号波形。
After the signal is processed through a low-pass filter, a very realistic waveform is obtained which can show pulsed nature, frequency, amplitude and bandwidth of television picture signals.
并将生成信号经低通滤波器处理,从而最终得到了一个能够充分反映电视图像脉冲性、频率、幅度和带宽特点的较为逼真的信号波形。
After the signal is processed through a low-pass filter, a very realistic waveform is obtained which can show pulsed nature, frequency, amplitude and bandwidth of television picture signals.
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