基于到达时间的云闪定位计算模型仿真研究  

Calculation of Cloud Flash Lightning Location Based on Time of Arrival

作　　者：张萍[1] 张瑞芳[1] 彭雷[1] 赵文光[2] 

机构地区：[1]华中科技大学建筑与城市规划学院,湖北武汉430074 [2]华中科技大学土木工程与力学学院,湖北武汉430074

出　　处：《水电能源科学》2013年第3期178-181,共4页Water Resources and Power

基　　金：中央高校基本科研业务费基金资助项目(2012QN160);湖北省自然科学基金资助项目(2011CDB287)

摘　　要：针对雷电定位系统中的云闪定位问题,基于雷电到达各探测站的时间建立了云闪定位计算模型,给出了云闪定位的计算方法和精度评定,利用模拟的云闪观测数据,通过不同数目探测站的组合对云闪定位的计算模型进行了仿真计算,并对仿真过程中迭代计算的收敛性和初值的确定方法进行了分析。结果表明,云闪定位计算模型合理、有效,且计算稳定、计算量小。As to positioning of cloud-flash in the lightning location system, a cloud flash model for the calculation of positioning was built according to the time when lightning reaches the detection station. The calculation method and accu- racy assessment of cloud flash lightning location were also presented. Using observational data of the simulated cloud flash,combination of different number of detection Stations was used to conduct numerical simulation about the calculation model of cloud-flash lightning location. The convergence of iterative calcualtion and the determination of initial value in simulation calculation were analyzed. The results show that the location model of the cloud flash is reasonable and effec- tive with stable and less calculation.

关 键 词：雷电定位 云闪探测 到达时间 精度评定 

分 类 号：P457.9[天文地球—大气科学及气象学]