modulating signal
英 [ˈmɒdjuleɪtɪŋ ˈsɪɡnəl]
美 [ˈmɑːdʒəleɪtɪŋ ˈsɪɡnəl]
网络 调制信号; 调变信号; 调变讯号; 调制讯号
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 holographic apparatus includes a mask for modulating a signal beam to generate a modulated signal beam;
一种全息装置，包括：一个掩模，用于调制信号光束以产生调制的信号光束； - Frequency modulation ( FM): the form of modulation in which the frequency of the carrier is varied in accordance with the instantaneous value of the modulating signal.
混频滤波式频率合成器频率调制：载波的频率依照调校讯号的瞬时值而改变的一种调制。 - When a narrow band phase modulated signal is passed through a frequency divider with division ratio R, the power of the modulating signal is reduced.
窄带调相信号通过R倍分频器后，调制信号功率将下降。 - This paper analyzed the principle of the radar Doppler signal simulator, brought forward the effective way to enhance image restraint proportion: to equalize the phase difference of the carrier wave by changing that of the modulating signal.
分析了雷达多普勒信号模拟的原理，提出了单边带调制中提高镜频抑制比的比较有效的方法：即由调制信号的相移偏差来补偿载波相位和幅度的偏差。 - Second, by means of wavelet multi-resolution analysis, separating modulating signal from radiated noise of naval ships has been simulated and realized with moderate and low signal-to-noise rate.
其次利用小波的多分辨分析的方法，在中低信噪比条件下，仿真实现了调制信号和舰船辐射噪声的分离。 - According to the phase-detecting principle used in stick-slip measurement, the initial phase, phase difference, phase-modulation rate and frequency estimation may be obtained in a limited length of modulating signal.
爬行测量中应用的检相原理，可以提取有限长度调制信号的初相、相位差、相位调制量和估计频率。 - Arguments are given highlighting the link between the spectrum of the modulated signal and the invariant probability density function of the chaotic system generating the modulating signal.
分析了被调制信号的频谱与混沌系统产生的调制信号的不变密度函数之间的关系。 - The received FM signal is first downconverted to baseband using digital quadrature carriers generated by DDS. Then a decimation FIR filter and a digital differentiator are used to obtain the modulating signal.
该方法利用DDS产生的数字正交载波将调频信号进行数字下变频，利用FIR抽取滤波器和数字微分器在基带进行信号处理，从而得到调制信号。 - By receiving photoelectrical interference signal, amplifying its fundamental frequency with narrow-band amplifier, and comparing the phase of the amplified signal with that of the original modulating signal, the changes of the phase could be measured.
在光电接收后，利用狭带放大器对光电信号的基频进行放大，把放大后的基频电信号与原调制电信号进行相位比较，来探测相位变化。 - The influences of the constancy of base station transmitted frequencies, the amplitude-frequency and the phase-frequency characteristic differences of modulating signal and the CTCSS signal on the simulcast system are also analyzed and detailed specification and realization method are also given to those factors.
对基站发射频率的一致性、调制信号的幅频特性、相频特性的差异以及CTCSS信号对同播系统的影响进行了分析，并对这些影响因数给出了具体的指标要求及实现方法。 - How to select the acoustic carrier frequency and the modulating signal is a difficult problem in design of Radio-Acoustic Sounding System ( RASS). This paper presents the expressions of acoustic-frequency-window and frequency-bouncing-interval, and discusses five sorts of acoustic signal models.
声载频及其调制信号的选择是无线电声学探测系统的设计难点，本文给出了声频窗和跳频间隔的表达式，讨论了五种声源信号形式。 - In transducer circuit, the modulating and signal magnifying circuit is designed in detail.
对传感器信号处理电路，信号调制变换和信号放大电路进行了详细设计。 - The modulating signal is generated in the way of Direct Digital Synthesizer technology.
本文采用了数字频率合成技术（DDS）来产生调制信号，它具有超宽的频率带宽、超高的频率分辨率和相位连续性等特点，可以实现声光调制信号的频率和振幅的高稳定性。 - Fuel injection signal is also pulse width modulating signal, which chooses injection time and peak value, etc;
喷油驱动器信号也为脉宽调制信号，选取喷油时间和峰值电压等为特征； - In the first stage, the amplitude sequence of modulating signal is generated by addressing waveform memory and added by the frequency value of carrier wave in the adder. The parallel output of the adder is served as the frequency control word of the second phase accumulator.
在第一级寻址结构中产生的调制信号幅度序列和载波频率值在加法器中相加，并将相加的结果作为第二级相位累加器的频率控制字； - A graphical analysis method is introduced using which the final multiple SPWM ( MSPWM) waveform can be educed directly from the modulating signal and the n triangular carrier waveforms.
介绍了一种可以直接从调制信号和n个三角载波分析得出SPWM多重化（MSPWM）输出波形的图解分析法。 - Simulation shows that the method does not need high order FIR filter and has high linearity and low computation complexity. It can easily recovered the modulating signal with 0 dB SNR and 14 dB SIR. The train control codes are finally obtained through spectrum estimation algorithm.
仿真结果表明，高通FIR数字滤波器鉴频特性线性度高，所需FIR滤波器阶数少，实现方法简单，在0dB信噪比、14dB信干比环境下能够很好地恢复原始调制信号。 - With the addition of modulating signal to the TIG welding loop by the high frequency power electronic switch inverting techniqUe, the arc ultrasonic has been excited corresponding to the rising edge and the descending edge of the modulating electronic current.
利用高频功率电子开关逆变技术，在TIG焊接电弧回路中施加调制信号，对应着调制电流的上升沿和下降沿可分别激发出电弧超声。 - Adopted the one to one communication of FSK audio frequency modulating signal in the communication of every subsystem and host monitor.
各个子系统与主监测器采用FSK音频调制信号一对一通信。 - The signal-to-noise ratios and thier relations to pulse repetition frequency for both systems are calculated with typical modulating signal and the results are compared with PCM system.
通过典型调制信号计算了信噪比及这个比值与脉冲重复频率的关系，并将所得结果与脉码调制作了比较； - Progresses in Selenium-Modulating Cellular Signal Transduction
微量元素硒调节细胞信号传导的研究进展 - To overcome the frequency offset between the mixing signal and modulating signal in PGC demodulation, an additional ( A/ D) channel in DSP system is used to sample the modulating signal.
针对PGC解调中混频信号与实际调制信号的频率偏差，在DSP系统实现中采用一路A/D转换器对调制信号进行同步采样，从而克服了频率偏差对解调结果的影响。 - The chaotic series generated by a nonlinear map is used as the carrier and a message signal is used as the modulating signal. A parameter of the nonlinear map is modulated by the message signal in its chaotic regime.
即将一个由非线性映射所产生的混沌序列作为载波，将待发送的有用信号（数字信号）作为调制信号，对非线性映射的某一参数在其混沌区域内进行调制。 - The modulating signal is generated in the way of Direct Digital Synthesizer technology. With rapid development of micro electronics technology, Direct Digital Synthesizer ( DDS) becomes possible.
随着微电子技术的迅速发展，用直接数字频率合成（DDS）方法来产生核磁共振射频信号已经成为可能。 - Furthermore, when the reset voltage of two π is inaccurate or the transient spikes is existed in modulating signal, the overlap between the ramp wave and square wave may bring the deadband.
同时，调制器当2π复位电压不准确或者解调信号存在尖峰脉冲时，阶梯波与方波的数字叠加，也容易出现较大死区。 - Switching devices 'action is controlled through reasonably PWM modulating signal. Then adjustable power factor, the sinusoidal network side ac current and two-way transmission of energy can be achieved, which truly achieves the green transformation of power energy, opening a new chapter in energy using.
通过合理的PWM调制信号控制开关器件的开关动作，可以实现功率因数可调、网侧电流正弦化以及能量的双向传输，真正实现了电能的绿色变换，开启了能源利用的新篇章。 - Using Hilbert transform for demodulation process, the analytic signal obtained from the Hilbert transform of the band pass filtered vibration signal is used to extract the modulating signal component, the resulted signal envelope only contain the components that are related to gear fault frequencies.
通过对带通滤波后的信号进行基于Hilbert变换的解调，解调后的包络信号只包含与齿轮故障频率相关的分量。 - In this paper, we are going to use high speed digital signal processor, track the carrier wave through the digital phase locked loop, and so to demodulate the modulating signal.
而我们这里就是准备用高速数字信号处理器，利用数字锁相环实现对载波的跟踪，从而实现调制信号的解调，它能有效克服其他解调方式所遇到的困难。 - Zinc has also been demonstrated to play an important role in cellular signaling by modulating signal recognition, second messenger metabolism, protein kinase, and Phosphatase activities.
它通过调节细胞信号识别、第二信使代谢、蛋白激酶的磷酸化等在细胞信号转导中起重要作用。