这些模块包括振铃检测模块、来电过滤模块、双音多频解码模块、语音提示模块和单片机控制驱动模块。
These modules include the ring detection module, call filtering module, dual-tone multi-frequency decoder modules, voice prompt module and microprocessor controlled driver module.
详细论述多频互控方式的信令信号传送，交换机DTMF信令无线信道接续与控制。
We study the transmission of signaling signal with the compelled method of multi-frequency, and study the switching control of DTMF signaling with exchange in wireless in details.
研究了利用同步控制器解决周期多频采样系统的干扰解耦问题。
We address the disturbance decoupling problem of periodic and multirate discrete time systems via synchronous controllers.
介绍了一种计算机通过利用双音多频(DTMF)码进行控制的多媒体数学集中控制系统的工作原理。
The authors introduce a principle that the computer controls the multimedia teaching centralized monitoring system by using of DTMF.
采用两组MTMD(多频调谐质量阻尼器)系统控制某大跨网格屋盖结构的竖向地震作用。
Two groups of multiple tuned mass dampers (MTMD) are used in a long-span lattice roof structure to reduce the vertical seismic reaction.
然后，采用信号处理和计算机控制技术，提出了多频振动主动控制规律；
Then using the signal processing and microcomputer control techniques, a phase control law is presented to control the multi-frequence vibrations of rotors actively.
介绍了一种计算机通过利用双音多频(DTMF)码进行控制的多媒体数学集中控制系统的工作原理。
The authors introduce a principle that the computer controls the multimedia teaching centralized monitoring system by using of DTMF. This method is simple and dependable.
在工业现场由于条件的限制，很多过程变量需要的检测频率并不一样，从而带来了多频多变量的控制问题。
Because of the limit in modern industry sites, the frequency of the process variables detect is different. We can resolve the problem by multi frequency and multi variable control.
本文以多频连续波雷达终端系统为背景，重点讨论了跟踪控制器的速度测量，角度测量和距离测量问题。
Based on the Multi-Frequency CW Radar Terminal System, this paper mainly discusses the velocity-measurement, angle-measurement and range-measurement of the Tracking System.
针对高频地波雷达多频探测的同步时序要求，提出了一种基于以太网的多频雷达同步控制系统设计方案。
The paper presents a method about multi-frequency radar data acquisition system designing based on multirate signal processing.
针对高频地波雷达多频探测的同步时序要求，提出了一种基于以太网的多频雷达同步控制系统设计方案。
The paper presents a method about multi-frequency radar data acquisition system designing based on multirate signal processing.
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