用卡尔曼滤波求解河道糙率参数反问题  

Inverse analysis of river channel roughness parameter by use of Kalman filter

作　　者：李光炽[1] 周晶晏[2] 张贵寿[3] 

机构地区：[1]河海大学水资源环境学院,江苏南京210098 [2]河海大学交通与海洋工程学院,江苏南京210098 [3]绍兴文理学院土木工程系,浙江绍兴312000

出　　处：《河海大学学报（自然科学版）》2003年第5期490-493,共4页Journal of Hohai University(Natural Sciences)

摘　　要：提出了用四点线性隐格式求解水流方程、用卡尔曼滤波求解河道糙率的一种求解河道水流及其糙率参数反问题的新方法,并应用于淮河水流计算.结果表明,计算水位与实测水位过程完全吻合.By adoption of the fourpoint linear implicit form to solve water flow equations, a new method is developed for inverse analysis of water flow in river channels and the roughness parameters of the channels based on the Kalman filter, and applied to flow calculation for the Huaihe River. The variation of the water level calculated by the present method is in agreement with the measured data.

关 键 词：河道糙率 卡尔曼滤波 水流 参数反分析 

分 类 号：TV131.4[水利工程—水力学及河流动力学]