计算机与现代化
計算機與現代化
계산궤여현대화
COMPUTER AND MODERNIZATION
2014年
10期
119-122
,共4页
最大Lyapunov指数%C-C方法%Wolf方法%加权局域
最大Lyapunov指數%C-C方法%Wolf方法%加權跼域
최대Lyapunov지수%C-C방법%Wolf방법%가권국역
the largest Lyapunov exponent%C-C method%Wolf method%local weighted
针对混沌理论中基于最大Lyapunov指数预测瓦斯浓度过程中符号不确定的问题,在简化的C-C方法重构瓦斯浓度时间序列的相空间和Wolf方法计算最大Lyapunov指数谱的基础上,引入加权局域的思想优化瓦斯浓度预测模型。仿真结果表明:加权局域点个数为5时,改进预测算法最优,且比传统Lyapunov指数预测更精确。
針對混沌理論中基于最大Lyapunov指數預測瓦斯濃度過程中符號不確定的問題,在簡化的C-C方法重構瓦斯濃度時間序列的相空間和Wolf方法計算最大Lyapunov指數譜的基礎上,引入加權跼域的思想優化瓦斯濃度預測模型。倣真結果錶明:加權跼域點箇數為5時,改進預測算法最優,且比傳統Lyapunov指數預測更精確。
침대혼돈이론중기우최대Lyapunov지수예측와사농도과정중부호불학정적문제,재간화적C-C방법중구와사농도시간서렬적상공간화Wolf방법계산최대Lyapunov지수보적기출상,인입가권국역적사상우화와사농도예측모형。방진결과표명:가권국역점개수위5시,개진예측산법최우,차비전통Lyapunov지수예측경정학。
Based on chaos theory, the symbol is uncertain when using the largest Lyapunov exponent to predict the gas concentra-tion.In order to solve this problem, the simplified C-C method is used to reconstruct the sequence of gas concentration and the Wolf method is used to calculate the largest Lyapunov exponent. Then uses the weighted local thought to establish the gas concen-tration predict model.The emulation experiment shows the prediction algorithm is optimal when the weighted number is 5, and more accurate than the traditional Lyapunov exponent prediction.