Experiments for Acoustic Digital Data Communication Using Frequency Shift Keying Modulation
Experiments for Acoustic Digital Data Communication Using Frequency Shift Keying Modulation
复制标题
使用频移键控调制的声学数字数据通信实验
DOI：
10.1143/jjap.39.3184
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发表时间：
2000
影响因子：
1.5
通讯作者：
Toshiaki Nakamura
中科院分区：
文献类型：
--
作者：
H. Ochi;T. Shimura;T. Sawa;Y. Amitani;Toshiaki Nakamura
近年来，对水声通信设备的需求越来越大，这些设备用于从安装在水下的观测设备收集数据并控制遥控飞行器。为了从这些设备上采集数据，我们开发了一种基于频移键控(FSK)调制的分组传输系统。该设备是一种半双工水声通信设备，频率为20 kHz±1.25 kHz，传输速率为1250bps，最大声功率为20W。在大约4,000米的传输距离上，成功地传输了无差错的15K字节数据。
In recent years, there has been a growing demand for acoustic communication equipment for collecting data from observation devices installed underwater and controlling remotely operated vehicles. With the objective of collecting data from these devices, we developed a packet transmission system based on frequency shift keying (FSK) modulation. This equipment is a half-duplex acoustic communication device with a frequency of 20 kHz±1.25 kHz, transmission rate of 1,250 bps and a maximum acoustic power of 20 W. Using this equipment, a trial was carried out in the sea at the depth of 3,500 m in October 1998. At a transmission distance of approximately 4,000 m, it successfully transmitted error-free 15-kbytes data.