| 麦克风阵列时延估计在单片机上的研究与应用 |
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| 引用本文： | 李长春,周渊平,张泽杰.麦克风阵列时延估计在单片机上的研究与应用[J].通信技术,2011,44(8):110-112. |
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| 作者姓名： | 李长春 周渊平 张泽杰 |
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| 作者单位： | 四川大学电子信息学院,四川成都,610065 |
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| 摘 要： | 随着电子通信的逐渐普及,高质量高稳定性的通信需求促使阵列信号处理研究的产生和日益壮大,尤其是语音信号处理。在飞利浦P89LPC936型号芯片的基础上,加上音频采集电路和模拟输出电路以及单片机串口通信电路,搭建了基于51单片机的麦克风阵列时延估计硬件系统。然后对自相关与互相关算法进行改进,让其通过单片机能够非实时地计算出实验中的阵列系统时延。有助于复杂的语音阵列信号处理中时延估计实时性的研究。
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| 关 键 词： | 麦克风 阵列 时延 单片机 语音信号 |
Study on Microphone Array Time-delay Estimation based on SCM |
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| LI Chang-chun,ZHOU Yuan-ping,ZHANG Ze-jie.Study on Microphone Array Time-delay Estimation based on SCM[J].Communications Technology,2011,44(8):110-112. |
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| Authors: | LI Chang-chun ZHOU Yuan-ping ZHANG Ze-jie |
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| Institution: | LI Chang-chun,ZHOU Yuan-ping,ZHANG Ze-jie(College of Electronic Information,Sichuan University,Chengdu Sichuan 610065,China) |
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| Abstract: | With the gradual popularity of electronic communication,the demand of high-quantity and high-stability promotes the emergence and enhancement of array signal processing.Based on the integrated circuit(IC) and with audio sampling and analog output as well as universal asynchronous receiver/transmitter(UART),a hardware system time-delay research of microphone array is constructed.Then the time-delay algorithm is improved and calculated with a none real-time way in the hardware system.The improved algorithm,wi... |
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| Keywords: | microphone array time delay SCM auditory signal |
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