水声通信接收机增益控制电路设计研究  

Research on Gain Control Circuit Design of Underwater Acoustic Communication Receiver

作　　者：胡天宇[1] HU Tianyu(The 54th Research Institute of CETC,Shijiazhuang 050081,China)

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《计算机与网络》2023年第16期62-66,共5页Computer & Network

摘　　要：水声通信接收机可以实现声-电信号转换,并为信号处理模块提供工作频带内的完整信号。为了适应不同水文环境及通信体制的信号预处理要求,设计了可通过SPI或GPIO接口调整的增益控制电路,采用固定增益与可控增益相结合的信号调理机制,解决水声通信信号动态范围大的问题。通过测试试验,验证该电路具备良好的低噪声特性及稳定的工作状态。The underwater acoustic receiver can realize the conversion of acoustic and electrical signals,and provide the signal processing module with complete signals within the working frequency band. In order to adapt to the requirements of signal processing in different hydrological environments and communication systems,a gain control circuit that can be adjusted through the SPI or GPIO interface is designed. The signal conditioning mechanism combing fixed gain and controllable gain is used to solve the problem of large dynamic range of underwater acoustic communication signal. The test results show that the circuit has good low noise characteristics and stable working state.

关 键 词：水声通信接收机 增益控制 低噪声 

分 类 号：TN911.7[电子电信—通信与信息系统]