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- The pulse width is modulated 脉宽调制
- The pulse width (full width at half maximum, FWHM) doesn't give an accurate description of the ultrashort Lorentz pulse when the FWHM pulse width is shorter than one optical oscillation period. 摘要当激光脉冲极短时,通常使用的半高全宽脉冲宽度并不能很好地描述洛仑兹脉冲,使用均方根脉冲宽度更为严格。
- In single EAM simulating, we got the pulses which narrowest pulse width is 59.78ps and extinction ratio is more than 20dB. It can be optical pulses source for 10Gbit/s in OTDM. 对于单EAM形式的装置数值模拟中我们获得了最小脉宽为59.;78ps、消光比大于20dB的脉冲序列,满足10Gbit/s的OTDM系统光源应用。
- And a trapezoidal pulse voltage source with the pulse width nearly equal to the line delay. 因负载端去耦合电容含线头电感所产生之效应。
- The relation between the FWHM pulse width and the root-mean square (RMS) pulse width is studied in theory. 利用理论推导的方法,给出了超短洛仑兹脉冲均方根脉冲宽度与半高全宽脉冲宽度的关系式。
- The wider the pulse width, the narrower the band width in the spectrum and vise versa. 脉波之波宽越宽,其频谱之频宽越窄,反之亦亦然。脉波迴旋积之次数越多,其结果越近似于高斯波形。
- It can also simulate the speed about distance changing and adjust the pulse width of echo signal. 此外,本目标回波距离处理器还可以仿真距离变化速率,调节回波脉冲的宽度。
- This is fitted the pulse width of the injector and it's decided by the control unit. 因此,唯一能改变的量是喷油器阀能打开多久。
- DC motor switch module controler is a motor Driver and Amplifier that pulse width is changed, it can be control either one direction or bidirection. 摘要直流电机开关模式控制器是一种可变脉冲宽度的马达驱动器和放大器,既可单向控制,又可双向控制。
- The results show that the threshold distance of SRRS decreases with increasing the intensity and the pulse width of the pump laser. 研究结果表明:SRRS效应的阈值距离随着泵浦光强度和脉宽的增大而变短;
- The trickle-charge period is 1.12s , pulse width is 2.39ms for the NiCd/NiMH battery or 9.57ms for the Li-ion battery.top-off period is also 1.12ms ,duty cycle is 1:16. 涓流充电周期等于1.;12秒,脉冲宽度等于2
- The end and side composite pumping is an effective way to raise the Q-switching peak power and to compress the pulse width of the Q-switched pulse in a DPL. 端-侧面组合抽运方案是提高DPL调Q脉冲峰值功率和压缩脉冲宽度的有效技术途径。
- The yearly averaged rms width is 4.47km. 全年平均Na层均方根宽度为4.;47km
- The pulse width of the backward scattered radiation decreases with the increase of the electron’s initial energy, and the collimation of the scattered radiation becomes better. 短脉冲激光条件下得到的后向散射光的频率上移与长脉冲激光条件下得到的后向散射光的频率上移是完全一致的,同时发现随着入射电子初始能量的增加,散射光的准直性越来越好,后向散射光脉冲的脉宽越来越短。
- When two counters of the Intel8253 work at mode 1 and mode 2 respectively,the pulse sequence can be programmed with the change of the pulse width and pulse period. 该方法利用8253芯片的两个计时计、数通道分别工作在方式1和方式2,通过软件编程改变脉宽和脉间的时间值产生脉宽、脉间可变的脉冲序列。
- A successful politician is one who keeps his finger on the pulse of the electorate. 一位成功的政治家是一个对选民有深刻了解的人。
- Based on the introduction of equivalent phase shift superstructure fiber Bragg gratings(EPS-SSFBG),a method of quantitative analysis of the relationship between EPS-SSFBG and optical pulse width is presented. 在介绍等效相移超结构光纤光栅编解码器原理的基础上,提出分析等效相移超结构光纤光栅编解码器的结构参数与光源脉冲宽度关系的定量分析方法,利用MATLAB对光源占空比对于编解码器性能的影响进行了计算机仿真。
- He knew the pulse of the nation. 他了解国民的心态。
- He knew the pulse of the people. 他了解人民的意向。
- The change of the pulse width and the chirp with the saturable absorption and the gain band-width of Q-switched mode-locked lasers by means of the temporal domain ABCD matrices-is discussed. 用时域ABCD矩阵讨论了调Q锁模脉冲激光器输出脉冲的宽度和啁啾特性 ;主要给出了调Q元件作为幅度调制元件时的时域ABCD矩阵 ;并将光脉冲在激光腔中往返一周的ABCD矩阵写出 ;用此矩阵讨论了它对锁模脉冲的影响 .