摘要
卫星遥感观测非均匀地表重点区域监测数据通常具有复杂性和不确定性,难以精准确定重点监测区域和获取有用信息,导致监测范围受限,监测结果存在较大误差;因此,为了给非均匀地表的治理提供数据支持,利用无线传感器网络优化设计卫星遥感观测非均匀地表重点区域监测系统;加设卫星遥感观测图像传感器,调整无线传感器网络模块,改装监测数据处理器,利用调整的系统电路连接硬件元件,完成硬件系统的优化;在硬件和数据库的支持下,从拓扑结构和传输协议等方面,构建无线传感器网络;实现高空遥感与无线传感器网络的深度融合,利用无线传感器网络采集地表卫星遥感观测图像,获取地表信息,扩宽监测范围;并通过滤波、几何纠正等步骤,实现初始图像的预处理,并提取图像特征,根据特征图像的匹配结果,确定非均匀地表重点区域,结合地表倾斜角度、地表非均匀程度等指标完成卫星遥感观测非均匀地表重点区域监测;经实验测试发现改进系统与传统监测系统相比,优化设计系统输出地表倾斜角度和地表变形量的监测误差分别减小0.28°和0.73 m^(3),同时系统监测范围明显扩大。
The monitoring data of key areas of uneven surface observed by satellite remote sensing are usually complex and uncertain.It is difficult to accurately determine the key monitoring areas and obtain useful information,resulting in limited monitoring range and large errors in monitoring results.Therefore,in order to provide data support for the treatment of non-uniform surface,wireless sensor network is used to optimize the design of satellite remote sensing observation of non-uniform surface monitoring system in key areas.Add the satellite remote sensing observation image sensor,adjust the wireless sensor network module,refit the monitoring data processor,and use the adjusted system circuit to connect the hardware components to complete the optimization of the hardware system.With the support of hardware and database,wireless sensor networks are constructed from the aspects of topology and transmission protocol.Realize the deep integration of high-altitude remote sensing and wireless sensor networks,and use wireless sensor networks to collect satellite remote sensing images of the earth s surface,obtain surface information,and expand the monitoring range;Through filtering,geometric correction and other steps,the preprocessing of the initial image is realized,and the image features are extracted.According to the matching results of the feature images,the key areas of uneven surface are determined,and the monitoring of the key areas of uneven surface observed by satellite remote sensing is completed combined with the indicators such as the inclination angle of the surface and the degree of uneven surface.The experimental test shows that compared with the traditional monitoring system,the monitoring errors of the optimized design system output surface tilt angle and surface deformation are reduced by 0.28°and 0.73 m^(3),respectively,and the monitoring range of the system is significantly expanded.
作者
王欢
张西霞
牛宝
张瑞娟
WANG Huan;ZHANG Xixia;NIU Bao;ZHANG Ruijuan(Institute of Technology,Xi'an Siyuan University,Xi'an 710038 China;Xi'an Fengdong Infrastructure Construction Capital Investment Corporation,Xi'an 710068 China)
出处
《计算机测量与控制》
2024年第10期305-312,共8页
Computer Measurement &Control
关键词
无线传感器网络
卫星遥感观测
非均匀地表
重点区域监测
wireless sensor network
satellite remote sensing observation
uneven surface
key area monitoring
作者简介
王欢(1982-),女,大学本科,讲师。
