METHOD OF DISTANT TRASS DETECTION OF VEGETATION PLOTS UNDER STRESS Russian patent published in 2017 - IPC G01N21/64 

FIELD: measuring technique.

SUBSTANCE: during the implementing of a remote way of detecting of vegetation plots under the stress there is an excite of fluorescence of a plant chlorophyll using a laser source with high pulse repetition rate. After this there is a registration of variation δof relationship of fluorescence intensities at two wavelengths in the red and distant red spectral regions by series of measurements along the route of flight aviation media. About the detection of vegetation plots under the stress is judged by: d_ST ≥ Nd_norm, where d_ST d_norm - RMS variations of fluorescence intensities of relationship δ at two wavelengths in the red and distant red spectral regions by series of measurements along the flight line for plants in times of stress and in the normal condition, respectively; N-some threshold value, depending on the type of plants and causes stress.

EFFECT: increase of the precision.

3 dwg