传感技术学报2016，Vol.29Issue(9)：1376-1382,7.DOI:10.3969/j.issn.1004-1699.2016.09.014
用于海洋地震勘探系统的数据变采样率采集及自检控制模块
A Sampling Rate Adjustment and Self-Check Control Module Based on Marine Seismic Exploration System
摘要
Abstract
In order to overcome the shortcomings of the existing system,a sampling rate adjustment and self-check control module based on marine seismic exploration system is presented in this paper. The module uses a method of variable sampling rate acquisition node synchronization based on phase-locked loop,to achieve the function of adjust⁃able sampling rate data acquisition. Meanwhile,the self-check function based on a control module of odd and even channels is developed,and variable channel acquisition as well as system self-check is accomplished. The results of experiments verify the feasibility of the proposed marine seismic exploration system. It shows that the synchronization accuracy of proposed system was 4.86ns. The function of adjustable sampling rate includes five modes(4 ksample/s (sample per second),2 ksample/s,1 ksample/s,500 sample/s and 250 sample/s). And the function of self-check in⁃cludes six modes(odd or even channel crosstalk,channel consistency,harmonic distortion,DC bias and noise).关键词
海上油气田地质与勘探/采样率可调/系统自检/奇/偶通道控制模块/数据抽取器Key words
geology and exploration of offshore oil and gas fields/sampling rate adjustment/system self-check/odd and even channel control module/data extractor分类
信息技术与安全科学引用本文复制引用
李彦超,段发阶,蒋佳佳,袁建富,薛俊,王宪全..用于海洋地震勘探系统的数据变采样率采集及自检控制模块[J].传感技术学报,2016,29(9):1376-1382,7.基金项目
海洋经济创新发展区域示范项目（cxsf2014-2）；国家自然科学基金项目（61501319）；国家自然科学基金项目（51275349）；光电信息与仪器北京市工程研究中心开放课题项目（GD2015007）；教育部博士基金项目（20130032110054）；航空科学基金项目 （）
