一种新型水声Modem模拟电路设计与实现

廖建宇; 申晓红; 吕小鹏; 王海燕

doi:10.11993/j.issn.2096-3920.2018.05.017

一种新型水声Modem模拟电路设计与实现

doi: 10.11993/j.issn.2096-3920.2018.05.017

1.
西北工业大学海洋声学信息感知工业和信息化部重点实验室, 陕西西安, 710072
2.
西北工业大学航海学院, 陕西西安, 710072

基金项目: 国家重点研发计划(2016YFC1400200)

详细信息

作者简介:
廖建宇(1996-), 男, 在读硕士, 主要研究方向为信号检测及其自动化.

中图分类号: TJ630.34; TN929.3
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- 被引次数: 0
出版历程
- 收稿日期: 2018-07-26
- 修回日期: 2018-08-30
- 刊出日期: 2018-10-31

Design and Implementation of a New Type of Acoustic Modem Analog Circuit

1.
Key Laboratory of Ocean Acoustics and Sensing Northwestern Polytechnical University, Ministry of Industry and Information Technology, Xi’an 710072 China
2.
School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China

摘要

摘要: 针对传统水声Modem体积大、功耗高、通信距离近的不足, 从水声Modem总体设计出发, 对其中发射通道和接收通道的关键问题进行了研究, 包括D类功放电路设计、双谐振回路阻抗匹配电路设计和接收预处理电路设计, 提出了一种体积小、转换效率高的D类功放电路, 以及一种新型组合带通滤波器设计方法和程控自动增益控制(AGC)实现方法。将上述方法运用到试验样机中, 并通过了水池试验和丹江口水库通信试验。试验结果表明, 该样机相较于传统样机, 在声源级方面提升了10 dB, 通信距离达到4.8 km, 验证了方案的可行性。该设计可为水声Modem样机研发提供参考。
- 水声Modem /
- 功放电路 /
- 阻抗匹配
Abstract: In view of the large volume, high power consumption and short communication distance of the traditional underwater acoustic modem, this study analyzed the key issues of relating the transmitting channel and the receiving channel in the overall design of the underwater acoustic modem. These issues include class-D power amplifier circuit design, dual resonant circuit impedance matching circuit design and receiving preprocessing circuit design. Subsequently, a class-D power amplifier circuit with small volume and high conversion efficiency, as well as a new combined bandpass filter design method and pro-gram-controlled automatic gain control(AGC) implementation method, was proposed. These methods were applied to the test prototype, and the prototype passed the pool test and the Danjiangkou reservoir communication test. The test results show that the sound source level of the prototype is improved by 10 dB, and its communication distance reaches to 4.8 km compared with the traditional prototype, which verifies the feasibility of the proposed scheme. This design may provide a reference for the development of underwater acoustic modem prototype.
- acoustic modem /
- power amplifier circuit /
- impedance matching

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参考文献(7)

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