Analog synthesis often use low-pass filter to remove electronic audio generator generated by high-frequency noise.
模拟合成器常常使用低通滤波器来去除电子音频发生器所产生的高频噪声。
The paper introduced the hazard of large turbine generator operation under abnormal frequency and technical requirements and criteria for low frequency protection.
介绍了大型汽轮发电机组频率异常运行的危害和对低频保护的技术要求及准则；
In addition a digital signal generator was incorporated via a DDS chip AD9850 from Analog Devices inc, featuring accurate frequency preset, quick phase transformation and low phase noise.
另外还采用AD公司DDS器件ad9850实现了一种频率可控制、相位变化快、相位噪声低的DDS信号源。
The low-frequency instability in variable speed constant frequency doubly fed induction generator(DFIG) widely used in wind power generation is investigated.
研究了广泛应用于风力发电的变速恒频双馈感应电机系统中的低频不稳定现象。
Fixing power system stabilizer on the governor of synchronous generator is an effective method to restrain low frequency oscillation.
在同步发电机组调速器侧装设电力系统稳定器是抑制电力系统低频振荡的有效措施。
For some operating conditions, a synchronous generator with a rectifier and back-EMF load maybe exhibit low-frequency oscillations when the system parameters do not match.
同步发电机整流带反电动势负载时，当系统参数不匹配，在一定工况下，可能出现低频振荡。
In this paper, the measurement methods for three kinds of parameters of low frequency noise generator are described.
介绍了针对低频噪声源三种参数的测试方法。
The paper proposed a high frequency function generator based on chip MAX038. The function generator had the characteristics of high precision, large frequency range, and low distortion.
介绍一种由单片机控制的采用MAX0 38芯片构成的高频函数发生器，它的特点是输出精度高，频率范围宽，失真小。
A multi-speed jittered signal generator (216,400) that generates a full-speed jittered signal (404) by scaling a low-speed jittered signal (420) using a frequency scaler (428).
通过使用频率缩放器（428）缩放低速抖动信号（420）产生全速抖动 信号（404）的多速抖动信号发生器（216，400）。
The realization of the project is mainly composed of two parts. The first part is low frequency signal generator based on DDS, and the second part is high frequency signal synthesizer.
该方案的实现主要包括两大部分，其一是低频dds信号产生部分，其二是高频信号合成部分。
The traditional PSS use the local signal such as the generator electromagnetism power or shaft speed as its input to restrain low frequency oscillation.
传统的PSS使用本地可测量的发电机电磁功率、转速等作为输入信号以抑制低频振荡。
The traditional PSS use the local signal such as the generator electromagnetism power or shaft speed as its input to restrain low frequency oscillation.
传统的PSS使用本地可测量的发电机电磁功率、转速等作为输入信号以抑制低频振荡。
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