遥感测绘技术下平原河道淤积断面智能监测  

Intelligent monitoring of siltation sections in plain river channels using remote sensing surveying and mapping technology

作　　者：吴文亮 余杰 俞娜飞 WU Wenliang;YU Jie;YU Nafei(Ningbo Xinzhi Information Technology Company Limited,Ningbo,Zhejiang 315040,China;Ningbo Tianyi Design Research of Surveying&Mapping Company Limited,Ningbo,Zhejiang 315000,China;Ningbo Ningda Foundation Treatment Technology Company Limited,Ningbo,Zhejiang 315020,China)

机构地区：[1]宁波欣智信息科技有限公司,浙江宁波315040 [2]宁波市天一测绘设计研究有限公司,浙江宁波315000 [3]宁波宁大地基处理技术有限公司,浙江宁波315020

出　　处：《北京测绘》2024年第10期1470-1476,共7页Beijing Surveying and Mapping

摘　　要：在平原河道淤积断面智能监测过程中,一般采用测绘数据构建河道水体模型,从而分析得出监测结果,但该过程忽略了测绘数据噪声对监测结果的影响,导致监测结果准确度不高。因此,本文提出基于遥感测绘技术的平原河道淤积断面智能监测方法。首先根据平原河道的走向布设遥感测绘的监测点位,并通过判决合并同一测点内的一致光谱波段区域。然后采用两次一维傅里叶变换去除测绘数据噪声。最后结合去噪后的测绘数据,计算平原河道水流挟沙力系数,并利用相关的平衡方程得出河道淤积断面高程的监测结果。实验结果表明,使用本文方法得到的平原河道淤积断面高程监测结果与真实结果高度一致,监测到的淤积量与实际淤积量高度一致,监测结果准确度较高,能够充分满足平原河道淤积状况管理工作的实际需求。In the process of intelligent monitoring of siltation sections in plain river channels,surveying and mapping data is generally used to construct a water body model of the river channel,so as to analyze and obtain monitoring results.However,this process ignores the impact of surveying and mapping data noise on monitoring results,resulting in low accuracy of monitoring results.Therefore,a method for intelligent monitoring of siltation sections in plain river channels based on remote sensing surveying and mapping technology was proposed.Firstly,monitoring points for remote sensing surveying based on the direction of the plain river channel were set up,and consistent spectral band areas within the same monitoring point were merged through judgment.Secondly,two one-dimensional Fourier transforms were performed to remove surveying and mapping data noise.Finally,According to the denoised surveying and mapping data,the sediment carrying capacity coefficient of the plain river flow was calculated,and the relevant balance equation was used to obtain the monitoring results of the elevation of the siltation section in the river channel.The experimental results show that the monitoring results of the elevation of the siltation section in the plain river channel obtained by the method proposed in this article are highly consistent with the actual results,and the monitored siltation amount is highly consistent with the actual siltation amount.The monitoring results have high accuracy and can fully meet the actual needs of the management of the siltation situation in the plain river channels.

关 键 词：平原河道 河道淤积断面 遥感测绘技术 智能监测 河道监测 

分 类 号：P237[天文地球—摄影测量与遥感]