卡尔曼滤波技术的水动力学实时校正方法对比

Comparison on Real Time Correction Methods of Hydrodynamic with Kalman Filter

针对整体滤波、交替滤波两类实时校正方法比较,考察单一河道上水位实测点的校正对其他位置流量的影响及计算耗时的差别,得出实时校正方法对比的结论。以长江上游寸滩至万县干流段为例,结果表明交替滤波略优于整体滤波。

Two kinds of real-time correction methods（alternate filtering method and integrated filtering method） were examined,firstly,to detect how these two methods can work only for water-stage updating without discharge correction; and secondly,to select the timesaver one. The calculation of flood forecasting for river section from Cuntan to Wanxian of Yangtze River verifies that the alternate filtering method performs better than integrated one.