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- When the square wave signal pass the LPF,we can get the sine signal. 经过分析可知,检测过程中的低通滤波器对检测的精度和速度有重要影响。
- The signal thus received will no longer look like a square wave but will be distorted in shape and spread out in time. 这样收到的信号看起来不再象矩形波,而是受到畸变,并且持续时间延长了。
- By using a square wave for ac-excitation, with the polarity of the excitation signal reversed between measurements, the induced dc errors can be effectively cancelled. 由使用一个方形波为交流励磁,与励磁信号在测量之间的极性扭转,被感应的直流误差可能被有效地消除。
- Variation of the amplitude of a carrier wave (commonly a radio wave) in correspondence to fluctuations in the audio or video signal being transmitted. 一个载波(通常是无线电波)的幅度随着发送的声频或视频信号的涨落而变化。
- Curve the films into rectangle waveguide with BCl3 ions. Detect the gain 10.0dB at the 10uW square wave signal and pump power 160mW. Get 4.2dB gain per centimeter. 用BCl_3干法刻蚀将镱铒共掺Al_2O_3薄膜刻蚀成光波导，当信号光被调制为1Hz的方波时，在160mW功率泵浦下，光波导放大器的总增益为10.;0dB，单位长度增益为4
- The glabrous skin of human fingers was choosed as the experimental objects, which was stimulated by square wave electrical signal mixed with electrical noise. 采用的心理物理学实验方法是单刺激随机阶梯法和单择一强迫选择法。
- There is no video signal. 没有视频信号。
- Excellent staable are from Ac square wave, avoid high frequency hazard. 交流方波自稳弧性能优异,免除高频危害。
- DSP card is used for video signal sampling and image data processing. DSP高速数字信号处理板做从机,主要负责图像信号的实时采集和图像数据的实时处理。
- Square waves, like sine waves, are periodic. 方波如正弦波一样是周期性的。
- Is there any delay between receiving the audio signal and the video signal? 接收声音信号和可视信号之间是否有时间间隔?
- The concept of square wave and EFT drive unit are introduced in this paper. 本文介绍方波信号发生器及场效应管驱动器的原理与设计。
- This article presents a composite video signal sampling system based on CPLD. 介绍了一个以CPLD为控制单元的黑白全电视信号采集系统。
- Introduce the principle of MOSFET AC square wave inverter power source. 介绍了MOSFET交流方波逆变电源的工作原理。
- Abstract]: Auto tracking( ATR) is the key technique for VCR to ensure the quality of the replayed video signal. 自动磁迹跟踪是保证录像机重放图像质量的关键技术之一。
- As an example of the technique, let's compute the Fourier series which corresponds to a square wave. 作为这种方法的一个例子，让我们计算一个方波的傅里叶级数。
- For sine wave, triangle wave, and square wave, the good performance of current output is proved by experiments. 经过实验验证,对于正弦波、三角波和方波,负载输出电流波形跟踪良好。
- In key effects, the video signal which fills the hole cut in the background video. 在键效果中,在背景图像中填充进切割空洞的视频信号。
- Applicable to transmission of various video signal in close circuit TV monitoring system and sound engineering. 适用于在各类闭路电视监控系统、音响工程中传输视频信号。
- When the actuator is actuated with a square wave, the corresponding mean velocities are 4.70m/s and 4.22m/s. 该致动器存在两个共振频率;在共振频率下工作;方波分别出现了4.;70m/s和4
