摘要
以宁波市北仑区新路林场作为研究区域,选用主成分回归法、偏最小二乘法和逐步回归法3种不同方法,基于资源三号卫星影像建立蓄积量反演模型,并对比不同估测模型的精度得出逐步回归模型为最优模型,相对精度为95.2%,满足林业调查的需要。
Three different methods, principal component regression method, partial least squares method and stepwise regression method are used to establish the volume inversion model based on the satellite image of ZY-3. The stepwise regression model is the optimal model by comparing the accuracy of different estimation models, and the relative accuracy is 95.2%,which meets the needs of forestry investigation.
引文
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