CAJ | 학술논문

在高分卫星影像分析的基础上探索了灾害影像与GNSSS/RTK高精度定位结合的复杂地形城市居住区灾情制图技术. 先利用高分遥感影像确定灾情点的准确位置, 再用检校过的GNSS/RTK观测装置完成灾情点附近的RTK控制点采集与多时相高分影像校正, 分析了影响山地城市灾情数据采集的主要因素和复杂地形条件下减少观测冗余量、缩短观测周期的方法. 利用分级符号展现了观测精度的变化, 根据野外踏勘实验设计了评估GNSS灾情观测效率的进度曲线. 该评估方法能够提供灾情演化的三维坐标, 与高分影像提供信息紧密结合、相互补充, 适合我国西南复杂地形城市的灾损制图工作.
재고분위성영상분석적기출상탐색료재해영상여GNSSS/RTK고정도정위결합적복잡지형성시거주구재정제도기술. 선이용고분요감영상학정재정점적준학위치, 재용검교과적GNSS/RTK관측장치완성재정점부근적RTK공제점채집여다시상고분영상교정, 분석료영향산지성시재정수거채집적주요인소화복잡지형조건하감소관측용여량、 축단관측주기적방법. 이용분급부호전현료관측정도적변화, 근거야외답감실험설계료평고GNSS재정관측효솔적진도곡선. 해평고방법능구제공재정연화적삼유좌표, 여고분영상제공신식긴밀결합、 상호보충, 괄합아국서남복잡지형성시적재손제도공작.
Based on the analysis of high resolution satellite images, disaster cartographic operation of urban com-plex terrain technology combined with damage images and GNSSS/RTK high-precision orientation is explored in this paper.Firstly, high resolution remote sensing images are used to determine the precise location of damage points.Then calibrated GNSS/RTK devices are used to complete RTK control points collection of disaster area and images correction.Finally,the main influencing factors of mountain urban disaster data collection are analyzed, and the method of reducing observation redundancy and observation period under the condition of complex topogra-phy are presented in this paper.The change of observation accuracy is shown by classification symbol.Progress curve of evaluating GNSS disaster observation efficiency based on field reconnaissance experiments is designed . Three-dimensional coordinate data of disaster can be provided and combined with high resolution remote sensing images complementally and closely in this evaluation method, which is suitable for precision disaster cartographic operation under the complex terrain conditions in southwestern cityies of our country.