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- reference frequency signal 基频信号
- What is the reference frequency or range of reference frequency? 参考时钟频率多少?
- A hybrid rotor position self-sensing approach was investigated in this paper by combining the high frequency signal injection method and model reference adaptive system(MRAS) method. 基于对高频信号注入法和模型参考自适应法转子位置自检测原理和特性的讨论,提出了一种包含零速在内的全速度范围内均能实现转子位置/速度准确检测和控制的复合方法。
- SRFM Signal Reference Frequency Multiplex 信号参考频率复用
- The readout principle and test method of high frequency signal of CD are introduced. 介绍了CD光盘的高频(HF)信号的读取原理和测试方法。
- The match strobe gate is presented to improve the measurement precision of low frequency signal. 文中提出使用匹配选通门提高低频信号频率测量精度。
- The output of common ultralow frequency signal generator has only a few fixed waveforms which can not be changed. 常用超低频信号发生器的输出只有几种固定的波形,不能更改。
- High quality REC of video frequency signal and big area communion of video frequency resources are the important parts of Instruction Multimedia Resources. 其中,视频信号的高质量录制、视频资源的大范围共享,是多媒体教学资源建设的重要组成部分,成为教育界所关注的重点。
- The DFT phase detection method can take out frequency, phase and magnitude of the base frequency signal from a random synchronization signal. 离散傅里叶变换可以从任意信号中抽取基准频率倍频次信号的相位、频率和幅值,可以解决谐波对外同步信号的影响,从而实现周期控制锁相环对谐波的识别。
- It is during these hours when the transmitter was implanted, and when, I awoke I had a searing high frequency signal at about 100 db in my skull. 在这几小时的时间里,芯片在那时被植入,并且在那我醒过来的时候,在我的头骨里,有一种大约在100分贝的灼热的高频信号。
- Opto-electronic oscillator(OEO) is a hybrid optical electrical device featured with a loop structure and high speed performance. As a kind of oscillator,the oscillation of OEO can be injection locked by an external reference frequency. 本文所研究的光电振荡器(OEO)是一种高速光电混合环路;其振荡频率可以被锁定于外界信号的数据率.
- Operating in the heavy congested SW band, HF radars use a quasi-random step frequency signal to avoid the interference bands. 高频雷达工作在电磁环境十分恶劣的短波段,为避开干扰严重的频段,采用一种准随机跳频信号。
- Can be output voltage, current, millivolt, frequency signal output of 24V DC power distribution circuit to provide power for the transmitter. 可输出电压、电流、毫伏、频率等信号24V DC配电输出为变送器提供回路电源。
- The high frequency signal can be decomposed, and the frequency field can be divided into tinier ones with the emerging of wavelet packets. 摘要小波包的方法能对高频信号进行小波分解,给出了频域带更精细的划分。
- The complex weighting vectors at other frequencies satisfying the request of wideband constant beamwidth can be deduced from the one at the reference frequency. 其它频率点上满足宽带恒定束宽要求的复权向量可以根据参考频率上的复数权值通过折算求得。
- Don't refer to this matter again, please. 请不要再提这件事了。
- Can control audio frequency signals remotely,the volume can be modulated. 可对各路音频信号进行远程操控,音量可调;
- In the data process the measured complex time signal is converted into frequency signal by DFT to get vibration information regarding frequency and amplitude of the rotor. 在数据处理中,对所得到的复杂时域振动信号进行了离散傅里叶变换(DFT),从而在频率域获得了转子的振动频率和振幅信息。
- It is an important application of superconducting devices to achieve the spectral information of high frequency signal by using the Josephson junctions. 摘要利用约瑟夫森效应获取电磁信号的频谱信息是超导电子学的重要应用之一。
- The study also includes a series of high frequency signal compensation, highfidelity processing method, practice proves the fidelity, resolution andsignal-to-noise improve much. 在本次处理方法研究中还采用了一系列的高频信息补偿、振幅的高保真处理措施,处理结果的保真度、分辨率和信噪比较以前的资料有很大提高。