1.
Signal Transformation of PCM-FSK/DTMF on DSP;
在DSP上实现PCM-FSK/DTMF信号变换
2.
The Producing and Detecting of the Signal DTMF Based on the DSP;
基于DSP的DTMF信号的产生和检测
3.
Simulation and Application of DTMF Signal Detection Using Modified Goertzel Algorithm
改进Goertzel算法的DTMF信号检测的仿真与应用
4.
A Design and Implementation of High Density DTMF Signal Coder/Decoder
一种高集成度DTMF信号编解码器的设计与实现
5.
Design of Low Band-Pass Switched-Capacitors Filter for DTMF Signals Receiver;
DTMF信号接收器中的低带通开关电容滤波器的设计
6.
Design of High Band-Pass Switched-Capacitors Filter for DTMF Signals Receiver;
适用于DTMF信号接收器中的高带通开关电容滤波器的设计
7.
Study of MCU Remote Communication System Based on DTMF Technology;
基于DTMF技术的单片机远程通信系统研究
8.
targeting signal
引导信号，导向信号
9.
ratio of carrier-to-interfering signal
载频信号对干扰信号比
10.
signal conditioning
信号波形加工,信号修整
11.
The other host of signal are control signals.
另一组信号是控制信号。
12.
analog to digital(A/D)
模拟信号到数字信号
13.
interlocking signals
联动式信号,连锁信号
14.
tropical cyclone signal light
热带气旋信号夜间灯号
15.
a foghorn that makes a two-tone signal.
发出两种信号的雾号。
16.
Sound the retreat, eg by blowing a bugle
发撤退信号（如吹撤退号）
17.
Morse Code light or Morse Code fog signal
莫尔斯灯光或雾号信号
18.
Software-based DTMF generator and Properties;
基于软件的DTMF产生器及其性能研究