利用地形、土壤和作物信息辅助提高东北漫岗地数字高程模型精度的新方法

马雨阳,官海翔,杨昊轩,邵帅,邵逸群,刘焕军

A New Method to Improve the Accuracy of Digital Elevation Model in Northeast China by Using Terrain, Soil and Crop Information

MA YuYang,GUAN HaiXiang,YANG HaoXuan,SHAO Shuai,SHAO YiQun,LIU HuanJun

表6 参考和改进的SRTM DEM与实测高程的精度验证

Table 6 Accuracy verification of reference and improved SRTM DEM and measured elevation

米 (m) SRTM 重采的SRTM Resampled SRTM 反向传播神经网络 BPNN DEM 极限学习机 ELM DEM 资源三号DEM ZY-3 DEM 无人机DEM UAV DEM 均方根误差RMSE 14.77 14.82 0.98 1.01 3.69 0.10 偏率Bias 0.92 0.91 0.97 0.97 0.95 0.99