| 初始种群范围及运行参数对遗传算法解算GPS病态方程的影响 |
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| 引用本文： | 郭秋英,赵吉涛,刘庆新. 初始种群范围及运行参数对遗传算法解算GPS病态方程的影响[J]. 山东科技大学学报(自然科学版), 2010, 29(6) |
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| 作者姓名： | 郭秋英 赵吉涛 刘庆新 |
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| 作者单位： | 山东建筑大学土木工程学院; |
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| 基金项目： | 山东省中青年科学家科研奖励基金项目，2009年山东建筑大学博士基金项目 |
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| 摘 要： | 通过实验研究了GPS快速定位病态方程中参数的搜索范围对基线及双差模糊度解算精度的影响,通过GPS基线解算实例研究了种群大小、交叉概率、变异概率及最大进化代数等参数设置对GPS基线及双差模糊度解算精度的影响。计算结果表明,如果测站近似坐标精度达到±0.5m以内,仅利用2个历元的单频载波相位观测数据,利用遗传算法可得到较准确的模糊度浮点解,有利于模糊度的快速固定。种群大小、交叉概率、变异概率及最大进化代数对遗传算法解算精度有一定的影响,通过实验将其分别设置为80,0.75,0.02,400,计算结果表明这些参数的设置是合适的。
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| 关 键 词： | 遗传算法 病态方程 初始种群范围 交叉概率 变异概率 |
Study of Effects of Initial Population Range and Running Parameters on GPS Ill-conditioned Equations Solved with Genetic Algorithm |
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| GUO Qiu-ying,ZHAO Ji-tao,LIU Qing-xin. Study of Effects of Initial Population Range and Running Parameters on GPS Ill-conditioned Equations Solved with Genetic Algorithm[J]. Journal of Shandong Univ of Sci and Technol: Nat Sci, 2010, 29(6) |
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| Authors: | GUO Qiu-ying ZHAO Ji-tao LIU Qing-xin |
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| Affiliation: | GUO Qiu-ying,ZHAO Ji-tao,LIU Qing-xin(College of Civil Engineering,Shandong Jianzhu University,Jinan,Shandong 250101,China) |
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| Abstract: | The impact of parameter search range on the solution precision of GPS ill-conditioned equations was researched by experiment.Also the impacts of four basic running parameters of population size,crossover probability,mutation probability and max evolutional algebra,etc.on the solution precision of GPS ill-conditioned equations were studied by experiment.The calculation results showed that the precision of parameter solutions of GPS ill-conditioned equations could be greatly improved based on genetic algorith... |
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| Keywords: | genetic algorithm ill-conditioned equations initial population range crossover probability mutation probability |
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