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- low frequency signaling system 低频信号方式
- 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。
- additional low frequency signaling 附加低频信号
- suppressed frequency signaling system 频带压缩信令系统
- voice frequency signaling system 话频信号系统
- Maritime and aviation navigation systems use low frequency signals to locate vessels or aircraft. 航海和航空界的导航系统使用低频率讯号来测量船只或飞机的位置。
- Note: Fast gating of sustained low frequency signals can result in “chattering. 注意：对相同的低频信号，设置噪声门过快会导致“喘息声”。
- Highly accurate detection of feeble and low frequency signals become realizable with the PWM sensing technique. 采用PWM检测技术，使微弱、低频信号的高精度检测成为现实。
- Dynamic characteristics of the portal frame are also identified from the WPT of low frequency signals. 低频的部分则可以进行门形构架的系统识别。
- Results showed that the spectra in frequency domain could be divided into two parts: high frequency and low frequency signals. 结果表明，测量光谱在频域中的信号可被分为两部分：即低频信号和高频信号。
- Study on graphic display in a measuring system for low frequency signal 低频信号测试系统图形显示的研究
- Ultra low frequency signal generator 超低频信号发生器
- Test methods for low frequency signal generators 低频信号发生器测试方法
- According to the technology of direct digital synthesis(DDS),a kind of low frequence signal source was introduced based on the Complex Programmed Logical Device(CPLD)and Single Chip Micyoco(SCM). 介绍了一种应用直接数字频率综合器(DDS)技术,基于可编程逻辑器件(CPLD)和单片机设计的低频信号源。
- multi frequency signaling system 多频信令系统
- DSS2 Digital Subscriber Signaling system No. 2号数字用户信令系统。
- Design and Realization of Ultra- low Frequency Signal - Generator 超低频信号发生器的设计与实现
- PC-based High Resolution Spectrum Analyzer for Low Frequency Signal 高分辨率PC虚拟低频频谱分析仪的设计
- General specification of low frequency signal generators 低频信号发生器通用技术条件
- Analysis and Realization of SCCP in the Signaling System No. 七号信令系统SCCP部分的分析与实现。
