Flood forecast error correction method based on Volterra series filter

• Main Authors: QIAN JINGLIN, QIAN YIQING, ZOU XIAOLEI, YAN QIBIN, XUAN WEIDONG
• Format: Patent
• Language: Chinese; English
• Published: 27.02.2024
• Subjects: ALARM SYSTEMS; CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; ELECTRIC DIGITAL DATA PROCESSING; ORDER TELEGRAPHS; PHYSICS; SIGNALLING; SIGNALLING OR CALLING SYSTEMS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention discloses a flood forecast error correction method based on a Volterra series filter, and belongs to the field of hydrology and water resources, water conservancy and hydropower engineering and emergency disaster prevention, and the method comprises the following steps: obtaining rainstorm flood data, employing a Xinanjiang model for simulation, and obtaining a model residual sequence; modeling a residual sequence of a Xinanjiang model based on a Volterra series filter; solving a Volterra series filter based on a self-organizing method; correcting a flood forecast result in real time; according to the method, a Xinanjiang model forecast residual error is used as a research object, and a second-order Volterra filter is used for simulating and forecasting the Xinanjiang model forecast residual error; the parameter time delay tau of the Volterra filter is obtained by adopting a mutual information method, the other parameter embedded dimension m is obtained by adopting a trial calculation method, th