一种水下声信号激光遥感探测系统  

Measurement System of Underwater Acoustic Signals with Laser Remote Detection Technology

作　　者：易淼[1,2] 谢晨[2,3] 徐向丽[4] 

机构地区：[1]宜春学院物理与工程技术学院,江西宜春336000 [2]桂林电子科技大学信息与通信学院,广西桂林541004 [3]中国移动通信集团广西有限公司网络信息分公司,广西南宁530028 [4]宜春职业技术学院机电工程系,江西宜春336000

出　　处：《大气与环境光学学报》2010年第1期73-80,共8页Journal of Atmospheric and Environmental Optics

基　　金：广西科学基金项目(0832012);广西区青年基金项目(0640065)资助

摘　　要：论述了水下声信号激光探测的原理及系统结构.具体设计了光探测器、前置放大电路、高通滤波电路、后级放大电路、低通滤波电路、50 Hz陷波器电路、串口通信电路、存储器扩展电路以及基于数字信号处理器TMS320LF2407A设计了控制和运算电路,并利用虚拟仪器来实现探测信号的实时显示.实验证明,该系统能够较好地完成对水下声信号的探测和数据处理.Abstract： To measure underwater acoustic signals with laser technology, the principle and hardware structure are presented, including photodetector circuit, pre-amplifier circuit, high-pass filter circuit, after-class amplifier circuit, low-pass filter circuit, notch filter circuit of 50 Hz, serial communication circuit, memory expansion circuit, etc. The control and calculating circuit are designed based on digital signal processor TMS320LF2407A, and virtual machines are used to achieve real-time display of signal detection. Experimental results show that the system can detect underwater acoustic signals well.

关 键 词：激光遥感 水下声信号 TMS320LF2407A DSP探测系统 

分 类 号：TN247[电子电信—物理电子学]