共查询到19条相似文献,搜索用时 140 毫秒
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张跃 《哈尔滨建筑大学学报》1990,(3)
本文在[1,3,4,5,6]的基础上,引入了L—fuzzy理想的L-fuzzy孤立成分和孤立L-fuzzy集等概念,并且讨论了它们的基本性质。特别是给出了L-fuzzy理想的正规L-fuzzy分解的第二唯一性定理。 相似文献
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蒋家尚 《东北电力学院学报》2001,21(4):22-25,33
给出了TL-fuzzy半群,TL-fuzzy左(右)理想,TL-fuzzy双理想,TL-正则半群及TL-fuzzy正则半群的定义,讨论了他们的性质,这里L是任一给定的完备Brouwerian格,T是L上的任一分配的t-模。 相似文献
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杨莉 《电子科技大学学报(自然科学版)》2005,34(5):703-705
在Banach空间中并在不具紧性的条件下,引入和研究了一类fuzzy多值隐拟变分包含及相应的fuzzy隐预解算子方程,借助预解算子技巧,建立了Banach空间中fuzzy多值隐拟变分包含与预解算子方程的等价性,得到了该类fuzzy多值隐拟变分包含的迭代算法与某些解的存在性定理及解的迭代逼近. 相似文献
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HUAI Chuangfeng FANG Yuefa 《武汉理工大学学报》2006,(Z3)
T-S fuzzy model was applied to describe nonlinear system and global fuzzy model was expressed by the form of uncertain system.Based on robust state feedback H_∞control strategy,designed a global asymptotic steady fuzzy model.This control system can use the experimental input-output data pairs for the biped robot learning and walking with dynamic balance.It is proved by simulation result that robust state feedback H_∞control method based on T-S fuzzy model can effectively restrain the effect of model uncertainties and external disturbance acting on biped robot.From these works,we showed the satisfactory performance of joint tracking without any chattering. 相似文献
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A directly adaptive fuzzy algorithm is applied in vehicle adaptive cruise control system. The basic principle of the adaptive fuzzy algorithm is analyzed. The initial value of the fuzzy based vector is given by the traditional fuzzy membership. Adaptive law of the adjustable parameters θ is also determined. The directly adaptive fuzzy ACC controller is designed based on Matlab fuzzy toolbox. Matlab-Simulink is adopted to test the function of the adaptive fuzzy ACC controller. The control system is established using a 7 DOF vehicle dynamics model. Simulation results indicate that the principle of the method is correct and it performs well both in cruise and distance keeping. 相似文献
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A fuzzy control algorithm of asymmetric fuzzy strategy is introduced for a servo-pneumatic position system. It can effectively solve the difficult problems of single rod low friction cylinders, which are mainly caused by asymmetric structures and different friction characteristics in two directions. On the basis of this algorithm, a traditional PID control is used to improve dynamic performance. Furthermore, a new asymmetric fuzzy PID control with α factor is advanced to improve the self-adaptability and robustness of the system. Both the theoretical analyses and experimental results prove that, with this control strategy, the dynamic performance of the system can be greatly improved. The system using this control algorithm has strong robustness and it obtains desired overshoot and repeatability in both transient and steady-state responses. 相似文献
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张跃 《哈尔滨建筑大学学报》1990,(4)
本文在文献[1,3~8]的基础上,引入了L-fuzzy诺特环、环X中的L-fuzzy升链条件和L-fuzzy最大条件以及极大质L-fuzzy理想等概念,并且讨论了L-fuzzy诺特环的一些基本性质,给出了一些命题、引理和定理。 相似文献
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Existence of supremum and infimum in E~ and relations of (M) integral and (G) integral 总被引:1,自引:0,他引:1
WU Cong-xin 《哈尔滨工业大学学报(英文版)》2000,7(3):58-61
Proves the existence of supremum and infimum in the noncompact fuzzy number space E~, redefines E~-valued (M) integral, and then discusses the relations between (M) integral and (G) integral of E~-valued functions. 相似文献
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This article investigated the implementation of AUV local planning under the strong sea flow field by integrating Q learning with fuzzy logic method.The dynamics of AUV under the sea flow was analyzed in detail,and thus fuzzy logic behaviors were defined,including a fuzzy behavior which was defined to resist the sea flow by giving an extra angle towards sea flow.This behavior was complemented by two other behaviors,the moving-to-goal behavior and collision avoiding behavior.The recommendations of these three behaviors were integrated through adjustable weighting factors to generate the final motion command for the AUV.And Q-learning was used to adjust the peak point of fuzzy membership function to increase adaptability.Simulation results showed that it improves the adaptability of AUV under different sea flow greatly. 相似文献
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Since computer system functions are becoming increasingly complex, the user has to spend much more time on the process of seeking information, instead of utilizing the required information. Information intelligent push technology could replace the traditional method to speed up the information retrieval process. The fuzzy cognitive map has strong knowledge representation ability and reasoning capability. Information intelligent push with the basis on fuzzy cognitive map could abstract the computer user's operations to a fuzzy cognitive map, and infer the user's operating intentions. The reasoning results will be translated into operational events, and drive the computer system to push appropriate information to the user. 相似文献
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引入了布尔代数的直觉模糊子代数、直觉模糊理想和直觉模糊商布尔代数的概念,给出了布尔代数的直觉模糊子集是直觉模糊子代数(直觉模糊理想)的充要条件,讨论了布尔代数的直觉模糊子代数(直觉模糊理想)在布尔代数同态下的像和逆像,并证明了当I是布尔代数R的直觉模糊真理想时,R/I是布尔代数。 相似文献
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给出了广义模糊子坡(理想)及关于T范数的广义模糊子坡(理想)的概念,探讨了它们的一些性质,在此基础上得到了它们的等价刻画。 相似文献
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C. LELE 《哈尔滨工业大学学报(英文版)》2000,7(3):19-23
0 INTRODUCTIONTheconceptoffuzzysetswasfirstintroducedbyZa dehin 1965[1] .Thestudyoffuzzyalgebraicstructureswasstartedwiththeintroductionoftheconceptsoffuzzysub groupsandfuzzyidealsinthepioneeringpaperofRos enfeld[2 ] in 1971.In 1975,NegoitaandRalescu[3] con sideredage… 相似文献
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一些学者已对格上的Fuzzy理想与Fuzzy同余关系进行了研究^[1-5],本文进行了进一步的研究并得出了若干重要的结论。 相似文献
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贾治中 《辽宁石油化工大学学报》1998,(2)
对广义模糊子环和广义模糊理想给出了一种等价的定义,证明了原广义模糊理想的定义中对任何的模糊点xt,ys∈A都有A(x+y)≥M(A(x),A(y),0.5),A(-x)≥M(A(x),0.5),A(xy)≥M(max(A(x),A(y)),0.5)这三个条件等价于(x+y)M(t,s)∈A或(x+y)1-M(t,s)∈A,(-x)t∈A或(-x)1-t∈A,(xy)M(t,s)∈A或(xy)1-M(t,s)∈A这3个新条件。利用上述等价定义推导出了广义模糊(左,右,双边)理想的“和”与“积”的若干运算性质。 相似文献
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吴从炘 《哈尔滨工业大学学报(英文版)》2001,8(2)
0 INTRODUCTIONOneofthemainproblemsinfuzzymathematicsishowtocarryouttheordinaryconceptstothefuzzycase .Thedifficultyliesinhowtopickouttherationalgeneral izationfromalargenumberofavailableapproaches .Itisworthnotingthatfuzzyidealisdifferentfromordinaryide… 相似文献