文章摘要
韩震,江鹏,张宇.深水通讯节点中基于脉冲采样的高能效SPWM发生系统设计[J].声学技术,2019,(2):153~157
深水通讯节点中基于脉冲采样的高能效SPWM发生系统设计
Design of pulse sampling based high efficiency SPWM generation system in deep-water communication nodes
投稿时间:2018-01-02  修订日期:2018-02-05
DOI:10.16300/j.cnki.1000-3630.2019.02.007
中文关键词: 正弦脉宽调制|脉冲采样|水声通信
英文关键词: sinusoidal pulse width modulation|pulse sampling|underwater acoustic communication
基金项目:国家重点研发计划(2016YFB0501700)
作者单位E-mail
韩震 武汉大学卫星导航定位技术研究中心, 湖北武汉 430079 willhanzhen@whu.edu.cn 
江鹏 武汉大学卫星导航定位技术研究中心, 湖北武汉 430079  
张宇 武汉大学电子信息学院, 湖北武汉 430079  
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中文摘要:
      近年来,深水探测中水下通讯节点的小型化、低功耗成为设计的难点。在水声通信中,普遍使用正弦脉宽调制(Sinusoidal Pulse Width Modulation,SPWM)信号驱动功率放大器进行工作。传统SPWM产生系统电路复杂度高,针对SPWM生成原理和电路实现,提出基于脉冲采样的SPWM生成方法,并进行性能分析;基于数字处理器设计了高能效SPWM发生系统,在保证SPWM信息损失较小的同时,减小硬件电路面积。实验结果表明,提出的高能效脉冲采样法与SPWM发生系统可以满足工程应用。
英文摘要:
      In recent years, the miniaturization and low power consumption of underwater communication nodes become the difficult points of engineering design in deep-water exploration. The power amplifier driven by SPWM signal is widely used in underwater acoustic communication. Traditional SPWM generation system requires high complexity of circuit. Therefore, according to SPWM generation principle and circuit implementation, this paper presents a pulse sampling based SPWM generation method and analyzes its performance. And in this paper, a high efficiency SPWM generator based on digital processor is designed under the premise of ensuring less loss of SPWM information to reduce the area of hardware analog circuits. The experimental results show that the proposed pulse sampling method and high efficiency generation system can satisfy the engineering application.
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