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Simulated Annealing Method and Its Improvements for Estimating Water Quality Parameters of River Stream
Author(s): 
Pages: 19-22
Year: Issue:  2
Journal: HYDROLOGY

Keyword:  模拟退火法算法改进水质参数参数估计;
Abstract: 将模拟退火法应用于求解分析河流水团示踪试验数据,确定河流水质参数的函数优化问题.针对标准SA算法收敛速度缓慢的弱点,采取了增加附加约束条件、设置内阈值提前降温和增加记忆功能等综合措施对算法进行了改进.算例表明,综合改进措施能够明显地提高算法收敛速度,并可以得到满意的参数计算结果.计算结果也表明,内循环次数不会对外循环次数产生明显的影响.由于算法对目标函数没有附加要求,而且算法的收敛性与待估参数的初值无关,因此,改进SA算法在分析河流水质试验数据、确定水质参数方面,将会具有非常广的应用范围.
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