激光无线音频传输系统设计
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国家自然科学基金资助项目(61304013)

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Design of Wireless Laser Audio Transmission System
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    摘要:

    为了简化短距离激光无线通信的系统结构和音频信号处理的编解码问题,分析了三角积分调制器(Σ-Δ)和开关键控(OOK)调制原理,给出了太阳能电池频率响应曲线和激光无线传输系统的硬件设计。在系统中进行了音频信号的无线传输测试,给出了测试数据,实验数据表明,具有400 kHz的带宽范围,通信距离至少200 m。

    Abstract:

    In order to simplify the structure of short distance wireless laser communication system and audio signal processing of the encoding/decoding problem, the principle of the Σ-Δ modulation technology and on off keying (OOK) modulation is analyzed, and the frequency response curves and the hardware design of optical transmitter and receiver are presented. We investigate the system′s performance through the audio signal wireless transmission, and the test data is given. The experimental results show that the data bandwidth of 400 kHz can be achieved, and communication distance can reach above 200 meters at least.

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兰建军,李宇.激光无线音频传输系统设计[J].压电与声光,2014,36(6):987-990. LAN Jianjun, LI Yu. Design of Wireless Laser Audio Transmission System[J]. PIEZOELECTRICS AND ACOUSTOOPTICS

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  • 在线发布日期: 2014-12-02
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