基于遥感时序与生育期模型的倒伏损害定量估算方法

By constructing instantaneous lodging intensity and cumulative lodging loss index, and adaptively adjusting the parameters of the dual-logic function time series model, the problem of low accuracy in estimating vegetation lodging damage in existing technologies is solved, and accurate quantitative estimation of lodging damage and reflection of actual yield loss are achieved.

CN121459166BActive Publication Date: 2026-07-17JIANGSU ACAD OF AGRI SCI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGSU ACAD OF AGRI SCI
Filing Date
2025-11-07
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing dual-logic function time-series fitting models cannot accurately capture the true magnitude of vegetation lodging damage when fitting it, resulting in low calculation accuracy and failing to meet the requirements for accurate estimation of localized sudden lodging damage.

Method used

By constructing instantaneous lodging intensity, cumulative lodging loss index, and calibration factor, the parameters of the dual-logistic function time series model are adaptively adjusted, including the preprocessing of remote sensing time series data, calculation of instantaneous lodging intensity, construction of cumulative lodging loss index, and calculation of calibration factor, to improve the accuracy of quantitative estimation of lodging damage.

Benefits of technology

It improves the sensitivity to lodging events, reflects the cumulative damage to vegetation, enables accurate prediction and quantitative estimation of lodging damage, and improves the accuracy of estimation results and the ability to reflect actual yield losses.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121459166B_ABST
    Figure CN121459166B_ABST
Patent Text Reader

Abstract

本发明公开了一种基于遥感时序与生育期模型的倒伏损害定量估算方法,涉及数据处理技术领域,该方法的步骤包括:步骤S1、采集遥感时序数据并进行预处理;步骤S2、分析植被倒伏时所述遥感时序数据的变化规律,并构建瞬时倒伏强度;步骤S3、基于所述瞬时倒伏强度分析植被倒伏的持续程度,构建倒伏累积损失指数;步骤S4、基于所述倒伏累积损失指数分析植被的衰老变化特征,构建校准因子;步骤S5、基于校准因子自适应调整双逻辑函数时序模型中的参数,并对倒伏损害进行定量估算。本发明解决了原始的双逻辑函数时序对突发局部变化适应性差,导致其在拟合倒伏发生阶段的局部陡降曲线时,无法准确捕捉损害的真实幅度的问题。
Need to check novelty before this filing date? Find Prior Art