秋玉米SPAD值的光谱估算模型研究

花宇辉,高志强

Hyperspectral Estimation of SPAD Values in Different Varieties of Autumn Maize

Yuhui Hua,Zhiqiang Gao

表4 不同秋玉米品种SPAD值估算模型的建模与验证结果

Table 4 Modeling and testing results under different models of SPAD value of different autumn maize varieties

品种Variety 模型 Model 建模集 Modeling set 验证集 Verification set RMSE RE (%) RMSEv REv (%) 双兴玉2号 一元线性Linear 4.825 6.976 4.114 5.845 Shuangxingyu No.2 指数Exponential 4.936 6.860 4.403 5.833 多项式Polynomial 4.773 6.814 3.924 5.803 NDSI (R′491,R′671) 5.031 7.618 4.327 5.615 正大999 一元线性Linear 2.851 3.666 3.112 4.050 Zhengda 999 指数Exponential 2.776 3.632 3.245 4.360 多项式Polynomial 2.762 3.643 3.322 4.518 DSI (R′491,R′671) 2.749 3.619 4.151 5.066 湘农玉27号 一元线性Linear 4.849 7.298 5.350 6.569 Xiangnongyu No.27 指数Exponential 4.393 6.642 7.285 8.478 多项式Polynomial 4.272 6.433 8.613 9.695 DSI (R′628,R′673) 5.051 7.782 7.501 9.127 兴玉818 一元线性Linear 5.100 6.701 4.421 6.097 Xingyu 818 指数Exponential 5.310 6.720 4.724 6.449 多项式Polynomial 5.019 6.779 4.620 6.128 NDSI (R′667,R′739) 5.132 6.635 4.432 6.004 临奥1号B3 一元线性Linear 4.240 5.134 4.172 5.357 Lin′ao No.1 B3 指数Exponential 4.304 5.120 4.110 5.060 多项式Polynomial 4.237 5.110 4.202 5.457 DSI (R′549,R′671) 4.361 5.126 4.190 5.553 湘农玉32号 一元线性Linear 3.880 5.055 3.795 4.564 Xiangnongyu No.32 指数Exponential 3.758 4.894 3.757 4.537 多项式Polynomial 3.672 4.805 3.949 4.658 DSI (R′553,R′677) 3.897 4.858 3.717 4.342 洛玉1号 一元线性Linear 4.179 5.202 9.062 9.308 Luoyu No.1 指数Exponential 4.138 5.140 7.529 8.258 多项式Polynomial 4.123 5.061 7.465 8.098 DSI (R′539,R′654) 4.570 6.303 5.722 7.731 田玉335 一元线性Linear 3.703 4.473 4.008 5.118 Tianyu 335 指数Exponential 3.867 4.559 4.240 5.443 多项式Polynomial 3.629 4.603 3.923 4.913 DSI (R′551,R′677) 3.630 4.379 4.054 5.163