基于明渠非恒定流仿真模型的灌区水情信息耦合研究  

Hydrological information coupling for irrigation district based on numerical simulation of open channel unsteady flows

作　　者：赵丽华[1] 徐立中[1] 

机构地区：[1]河海大学计算机与信息工程学院,江苏南京210098

出　　处：《水利学报》2012年第5期537-544,共8页Journal of Hydraulic Engineering

摘　　要：为扩展灌区水情实时监测系统的时空覆盖能力,增强系统的检测性能和可靠性,采用基于灌溉渠系运行仿真模型,通过在系统输入变量上叠加"干扰流量"的方法,建立起离散的实时监测数据之间的关联,同时基于对灌区用水模糊特征的分析,估计干扰用水的不确定性,使系统保持必要的信息冗余,进而应用信息融合理论和数值拟合等方法实现灌区水情信息融合。该方法不仅对建立具有跟踪能力的灌区实时仿真系统具有应用价值,而且克服了信息融合技术用于复杂系统的诸多限制,为扩展信息融合理论在系统方程确定的众多民用领域的应用,提出了一个普遍适用的技术途径。For expanding the spatial-temporal coverage capacity of irrigation hydrological information re- al-time monitoring system and enhancing system detective ability the model simulating the flow in irrigation canal is adopted. The correlation among scattered real-time monitoring data by superposing the ＂interfer- ence flow＂ on the input variables in the system are established. At the same time, the system maintains the necessary information redundancy by estimating the uncertainty of water interference based on fuzzy char- acteristics of irrigation water. On this basis the information fusion theory and numerical fitting methods are further applied to realize water information fusion. This method not only has applicative effectiveness of tracking real-time simulation system, but also overcomes the restrictions for complex systems of information fusion technology. It proposes a universal technical approach for the application of information fusion theory in many other application areas.

关 键 词：明渠非恒定流 数值仿真与分析 水情信息耦合 模糊判别 

分 类 号：P333[天文地球—水文科学]