陈实 艾春森 何轲 吴亮 陈田辉 王海燕.一种AGC控制的低噪声水声接收机[J].国外电子测量技术,2015,34(9):67-71
一种AGC控制的低噪声水声接收机
Low noise acoustic receiver of automatic gain control
  
DOI:
中文关键词:  深水隔水管  水声接收机  AGC  低噪声
英文关键词:deepwater riser  acoustic receiver  AGC  low noise
基金项目:国家科技重大专项(2011ZX05026 001 06)资助
作者单位
陈实 艾春森 何轲 吴亮 陈田辉 王海燕 1.南海西部石油勘察设计有限公司 2.西北工业大学航海学院 
AuthorInstitution
Chen Shi Ai Chunsen He Ke Wu Liang Chen Tianhui Wang Haiyan 1. Survey&Design Company, CONHW 2.College of Marine, Northwest Polytechnical University 
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中文摘要:
      在深水隔水管监测系统上,为了接收水下节点发射的信号,研究设计了一款低噪声低功耗水下接收机。在海洋环境下,由于发射机发射功率,传播损失以及传播过程中噪声干扰等影响,造成接收信号畸变、衰减、动态范围增大等问题,不利于后端数字处理。本系统选择低噪声芯片,优化电路结构、降低系统噪声,通过六阶椭圆滤波器,选择所需频带信号通过,采用AGC实现大动态范围的压缩。海试结果显示,该系统具有高灵敏度、低噪声、低功耗、接收动态范围大等优点。
英文摘要:
      In order to receive signals emitted underwater nodes by deepwater riser monitoring system, we design a low noise and low power underwater receiver. In the environment of marine, the transmission power of the transmitter due to propagation loss and propagation of noise interference, resulting in distortion of the received signal, attenuation, and dynamic range increases other issues. These are not conducive to the back end digital processing. The system selects the low noise chips to reduce system noise by sixth order elliptic filter, select the desired frequency band signal by using AGC achieve a large dynamic range compression. The results of experiments in the sea show that the system is a high sensitivity, low noise, low power consumption and big receiver dynamic range system.
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