... Hyperspectral remote sensing Soil organic matter content Estimation model If there are n known samples, and each sample has m estimation factors, then the eigenvalue matrix of m estimation factors for n known samples is as follows: (1) X = [ x 11...

... Hyperspectral remote sensing Soil organic matter Modified model Soil organic matter is one of the important indicators to measure soil fertility. Rapid and accurate estimation of soil organic matter content is of great significance to the development of precision agriculture. The traditional methods...

... hyperspectral grey relation estimating pattern based on the grey relational theory and the estimating pattern by using the local linear regression. Soil organic matter Hyperspectral remote sensing grey relational Local linear regression Soil organic matter is an important indicator of soil...