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Research on Sand Dumping Detection of Harbor Dredging Based on Empirical Mode Decomposition

Abstract

港口疏浚工程作业是港口建设的重要组成部分,但是,由于疏浚驳船存在违规倾倒泥沙的现象,导致清理和养护港口航道的成本大幅增加、造成巨大的经济损失和严重的生态坏境破坏。目前普遍采用的GPS定位及在驳船上安装摄像头、吃水线检测装置等监控设备的方法,因其易受人为破坏和环境因素的影响而无法得到满意的应用效果。国内航道管理部门迫切需要一种非接触式的、稳定可靠的监控手段,来有效监管疏浚驳船的操作行为,从而保证疏浚工程作业的质量。 本文根据混浊海水声吸收的原理,提出利用水下通信技术和信号处理技术,采用周期性地发送和接收Chirp探测信号,通过经验模态分解(EMD)和希尔伯特变换(HT)的方法来提取探测信号成分...Dredging operation is an important part of the port construction, however, due to the illegal dumping sediment by dredging barges in harbor, the cost for cleaning and conserving the waterway is increasing considerably, which results in a huge economic loss and serious damage to ecological environment. The measures taken generally at present, such as GPS positioning and installing cameras and draft...学位:工学硕士院系专业:信息科学与技术学院_通信与信息系统学号:2332011115311

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