无线电工程2025，Vol.55Issue(12)：2344-2352,9.DOI:10.3969/j.issn.1003-3106.2025.12.003
基于分形理论的GF-1 WFV反射率时空尺度转换建模
Spatiotemporal Scale Conversion Modeling of GF-1 WFV Reflectance Based on Fractal Theory
摘要
Abstract
Regarding the spatial scale conversion model based on fractal theory,its parameters exhibit temporal variability,which introduces errors in studying the scale effects of land features.To address this,modeling time series data is proposed to enable the application of fractal parameters on a temporal scale.The Gobi region in Bayannur City,Inner Mongolia Autonomous Region,is selected as the study area.Spatiotemporal scale conversion models are constructed for the reflectance of each band in cloud-free GF-1 Wide Field View(WFV)images from 2015 to 2020,following fractal theory.Results show that it is feasible to explore the temporal regularity of spatial scale changes,and the spatiotemporal scale conversion model constructed using the GF-1 W FV red band achieves the optimal fitting effect.The mean reflectance of the Gobi region increases with scale upscaling.The spatiotemporal scale transformation model constructed based on the GF-1 W FV red band in the study area indicates that the reflectance in the Gobi region is correlated with temporal scales,exhibiting a positive correlation with time.关键词
分形/戈壁/GF-1宽幅相机/反射率/时空尺度模型Key words
fractal/gobi/GF-1 WFV/reflectivity/spatiotemporal scale model分类
天文与地球科学引用本文复制引用
田云龙,李大成,熊威..基于分形理论的GF-1 WFV反射率时空尺度转换建模[J].无线电工程,2025,55(12):2344-2352,9.基金项目
山西省基础研究计划联合资助项目(交控)Shanxi Province Basic Research Program Jointly Funded Projects(Traffic Control) （交控）
