modulating frequency
英 [ˈmɒdjuleɪtɪŋ ˈfriːkwənsi]
美 [ˈmɑːdʒəleɪtɪŋ ˈfriːkwənsi]
网络 调制频率; 调幅频率
双语例句
- Liner frequency modulating signal, phase coded and frequency coded signal are detected and recognized from all kinds of signals.
从多种信号中检测识别线性调频信号、相位编码信号、频率编码信号。 - A Realtime Detection Approach of Carrier and Modulating Frequency of Tramroad FSK Signal
车载FSK信号载频和调制频率的实时检测方法 - Direct digital synthesis is used for modulating the frequency and amplitude of the square wave.
此方法利用直接数字合成技术完成对方波的频率和振幅的调整。 - The problems about driving-modulating rate mechanism, principle of the modulating rate and application of frequency converter are expounded generally.
对驱动调速机构、速原理以及变频器的应用，做出概要性阐述。 - Because of the modulating function of excited signal frequency and special image process, ultrasound excited thermography had some unique advantages.
由于激励信号的频率调制和特殊的图像处理方法，超声热成像检测法优势独特。 - The Design and Manufacture of a Simplified and Directionally-oriented TV and Modulating Frequency Transmitting Antenna
方向性简易电视调频发射天线的设计与制作 - The transform uses the scale of the signal to decompose and make self-adapting frequency band partition of the input signals. Therefore the amplitude value and the modulating frequency of the flickering signal can be obtained.
运用该变换从信号本身的尺度特征出发对信号进行分解的特点，对输入信号进行自适应的频带划分，从而求出了闪变的调制信号幅值和调制频率； - This paper introduces the measurement of fish-Finder's pulse modulating frequency with the 8031 single chip computer.
本文介绍采用8031单片微机实现探鱼仪脉冲载波频率的测量。 - The carrier frequency of medium frequency electricity was 4 kHz with modulating frequency of 100 Hz in manner of continuous wave, the electric current of medium frequency was 2 mA and acting time of 10 min.
中频电载波频率4kHz，调制频率100Hz，采用连调波型，中频电流为2mA，作用时间为10min。 - The hoist type crane has its best in compactness, legerity and price advantage. Speed modulating by frequency conversion can be used to improve the crane's capacities.
紧凑、轻巧、价格低廉是葫芦起重机的最大优点，在分析几种调速与控制方案的基础上，指出变频调速技术的应用，可以克服葫芦起重机使用中的一些缺点； - Applications of Sigma-Delta Modulating Technology in Fractional-N Frequency Synthesizer
∑-Δ调制技术在小数分频器中的应用 - METHODS: ① Rats in the experimental group were subjected to ultrasound-medium frequency electrotherapy with frequency of 0.8 MHz in manner of geminal pulse, the modulating frequency was 100 Hz and ultrasound intensity of 0.9 W/ cm2;
方法：①对实验组大鼠进行超声-中频电治疗，频率0.8MHz，采用连脉方式，调制频率100Hz，超声波声强0.9W/cm2； - But for distributed faults, if modulating wave has single frequency, there is only one sideband in both sides of meshing frequency f m and its doubling frequency 2f m respectively.
而对于分布故障，若调制波为单频，则理论上只在啮合频率fm和它的2倍频2fm两侧各形成1个边带； - Numerical simulation shows that there are different chaotic orbits corresponding to different modulation amplitude and modulating angular frequency only if the maximum Lyapunov exponent of the system is positive.
数值模拟结果表明，选择不同的调制幅度和调制角频率，只要满足系统的最大李雅谱诺夫指数大于零，即可实现不同的混沌轨道重构。 - In the research and application domain of modern electronics technology, we often need signal generators, which have high precision and modulating frequency.
在现代电子技术的研究及应用领域，常常需要高精度且频率可调的信号源。 - Nearest-neighbor pattern recognition can recognize low modulating frequency of FSK in higher sampling frequency, avoiding the disadvantage of sub-Nyquist sampling.
最近邻模式识别法在采用较高采样频率而导致频谱分辨率不高的情况下仍可准确检测FSK信号，有效避免了以往欠采样带来的采样时间较长的弊端。 - Aimed at the problem of the lower pulse width modulating frequency of the present high-speed on-off valves, an attempt at developing a new kind of electro-hydraulic highspeed on-off valve driven by piezoelectric components is done.
针对目前电液高速开关阀脉宽调制频率较低的问题，研制了新型压电元件驱动的电液高速开关阀，并研究了该阀的动态特性和静态特性。 - The switching freqency is high and fixed. The modulating index, phase and frequency can be independently controlled.
高开关频率基本固定，调制比与相位、频率可以独立控制，特别适用于PWM可逆整流器。 - The Application of a Speed Modulating Device by Frequency Conversion to the Liquid Level Regulation at Kerosine Stripping Tower
变频调速装置在煤油汽提塔液位调节中的应用 - A visually significant binary image via some pre-processing and SS modulating is embedded in audio low-middle frequency coefficients in wavelet domain.
将视觉有意义的二值水印图像经过一定的预处理及SS技术调制后，嵌入小波域的中低频系数中。 - The velocity modulating method that combines frequency modulation and phase modulation is applied, frequency modulation is the main method, when large modulation range is needed, it can change into phase modulation.
采取了变频、调相相结合的速度调节方法，考虑到超声马达通常用于谐振点附近，因此，以变频调速为主，当需要较大调节范围时，可切换到变相位差调节方式，满足调节范围要求。 - Measurement of Fish-Finder's Pulse Modulating Frequency
探鱼仪脉冲载波频率的测量 - Because frequency-shift signal is a kind of modulation signal, it's waveform is two AC sine signal of alternating i.e. upper frequency and lower frequency which was generated by low frequency modulating middle frequency.
由于移频信号是一种调频信号，其波形为低频信号调制中心载频信号后产生的低端载频（下边频）和高端载频（上边频）两个交替变化的正弦交流信号。 - The Operation Principles& Maintenances of the Modulating Device of Intermediate Frequency TV Transmitter
电视发射机中频调制器的工作原理与维修 - By modulating frequency of the pump laser narrower output pulses are obtained on the second harmonic and rational harmonic mode locked status and the 4th order rational harmonic mode locking status.
通过调整抽运激光器的调制频率，在相应于二次谐波锁模，4阶有理数谐波锁模条件下分别得到了较窄的脉冲输出。 - Through modulating frequency and speed, controlling the start-up current, running in high/ low speed without any shock, frequent start-up and shut down can be realized.
变频调速可抑制启动电流、无冲击地进行加减速运行、频繁地进行启动与停机实现合理控制。 - It is shown that a few interesting phenomena such as spectral-line narrowing, spectral-line enhancement, spectral-line suppression, and spontaneous emission quenching can be realized by modulating the phase, the frequency and intensity of the rf-driving field in our systems.
研究发现了一些有趣的现象，如谱线变窄、谱线增强、谱线抑制及荧光淬灭能够通过调节射频驱动场的相位、频率和强度来实现。 - Not only it can fulfill the need of general mechanical variable speed system, but also can supply reactive power to power system by modulating the frequency and phase of the rotor current.
它不仅可以满足一般场合机械调速的需要，而且能通过调节转子电压幅值和相位来实现电机定子侧功率因数的调节，另外还可应用于变速恒频调速发电系统。 - In order to realize the full utilization of power converter switching frequency and reduce the influence of harmonics on the system performance, the synchronous modulation seems to be an inevitable choice with the rise of the modulating frequency.
面对牵引变流器大功率低开关频率的特点，为了在充分利用开关频率的同时降低输出谐波对系统性能的影响，同步调制策略将是牵引变流器在一定调制频率下的必然选择。