Winter wheat canopy moisture content monitoring model establishing method based on spectral parameter

• Main Authors: PENG ZHIGONG, ZHANG BAOZHONG, CAI JIABING, LIU LU, ZHANG QIAN, LIN SHAOZHE, HAN NANA, WEI ZHENG, CHEN HE
• Format: Patent
• Language: Chinese; English
• Published: 02.08.2019
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a winter wheat canopy moisture content monitoring model establishing method based on a spectral parameter. In the invention, according to winter wheat canopy spectral reflectivity of each growth period and plant canopy moisture content data under different water treatments, a relationship between basic transformation of spectral information and a "three-sided" parameter ona plant canopy moisture content is analyzed, a suitable model combination considering a characteristic of each growth period and possessing high precision is provided, and a principal component estimation model of the plant canopy moisture content, which integrates the basic transformation of the spectral information, the "three-sided" parameter and other independent variables, is constructed. Effects of a spectrum monitoring birth period constraint and other background noises are broken through, and a theoretical basis and technical support are provided for winter wheat plant moisture contenthyperspectral accurate di