参量阵浅地层剖面仪采集处理系统设计  

Design of acquisition and processing system for parametric sub-bottom profiler

作　　者：冯宏 郭冉 程何小 FENG Hong;GUO Ran;CHENG Hexiao(The 715 Research Institute of CSSC,Hangzhou 310000,China)

机构地区：[1]中国船舶集团有限公司第七一五研究所,浙江杭州310000

出　　处：《舰船科学技术》2024年第21期119-123,共5页Ship Science and Technology

基　　金：国家重点研发计划项目(2022YFC2803600)。

摘　　要：参量阵浅地层剖面仪是一种极为重要的声学设备,广泛应用于海洋探测中。对该设备的工作原理及功能组成进行阐述,充分利用FPGA、DSP和高速AD在采集处理领域的优势,提出一种高精度、高采样率、宽动态范围和高运算能力的采集处理系统,介绍微弱水声信号低噪声放大和滤波处理、不同频不同源信号同步采集传输及浅地层剖面仪信号处理方式等技术。经海上试验验证,系统测量精度高,性能稳定可靠,对其他水声设备的研制极具借鉴价值。The parametric sub-bottom profiler is an extremely important acoustic equipment for marine exploration.This paper expounds the working principle and functional composition of the equipment,makes full use of the advantages of FPGA,DSP and high-speed AD in the field of acquisition and processing,proposes a high-precision,high-sampling rate,wide dynamic range and high computing ability acquisition and processing system,and introduces the technologies of low-noise amplification and filtering processing of weak underwater acoustic signals,synchronous acquisition and transmission of different frequencies and different sources signals,and signal processing methods of sub-bottom profiler.Verified by sea trial,the system has high measurement accuracy,stable and reliable performance,and has great reference value for the devel-opment of other acoustic equipment.

关 键 词：参量阵 浅剖探测 采集处理 

分 类 号：U666.7[交通运输工程—船舶及航道工程]