| 改进Goertzel算法的DTMF信号检测的仿真与应用 |
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| 引用本文： | 邵明东.改进Goertzel算法的DTMF信号检测的仿真与应用[J].电声技术,2009,33(12):65-69. |
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| 作者姓名： | 邵明东 |
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| 作者单位： | 清华大学,机械工程学院,精密仪器与机械学系,北京,100084 |
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| 摘 要： | 采用Scilab仿真了DTMF信号的产生与Goertzel算法检测拨号的过程及随机噪声和话音信号对DTMF拨号检测的影响．并分析了产生误识别拨号的原因。给出了应用DSP技术的DTMF拨号检测的步骤、方法、改进措施和结果。
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| 关 键 词： | DTMF Goertzel算法 DSP Scilab |
Simulation and Application of DTMF Signal Detection Using Modified Goertzel Algorithm |
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| SHAO Ming-dong.Simulation and Application of DTMF Signal Detection Using Modified Goertzel Algorithm[J].Audio Engineering,2009,33(12):65-69. |
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| Authors: | SHAO Ming-dong |
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| Affiliation: | SHAO Ming-dong (Department of Precision Instrument and Mechanology,School of Mechanical Engineering,Tsinghua University,Beijing 100084,China) |
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| Abstract: | The Scilab is used to simulate the process of generating DTMF (Dual Tone Multi Frequency) signals and detecting the dialing signals by means of Goertzel algorithm as well as the effects of the random noise and speech signals on the detection of the DTMF dialing. In addition, the reason of the false detection is analyzed. Then the DSP application of DTMF dialing detection is provided with the steps, the methods, the improvements and the results. |
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| Keywords: | DTMF DSP Scilab |
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