A Study On Air Quality Assessment Applied Bp Neural Network And Fuzzy Neural Networks

Air quality is not only closely related to human’s daily life,But also influence the constantly developing of human largely. We can realize the quality of air by air quality assessment,Which assess the quality of air scientifically and objectively,and let us informed about the law of air pollution,then,we can work out measure that prevent,even abate air pollution.so,in the past decades,so many scholars applied different thory or methods,each of them have its strength and weaknesses, into the assessment of air quality.There is a long way to be get through before we find out high-speed and accurate means that is suitable for air quality assessment,which is still a meaningful topic for study.Artificial Neural Networks(ANN) offer lots of useful properties and capabilities,such as high precise nonlinear approximation and parallel processing,adaptiveity and fault tolerance,thus,it’s a powerful tool for solve some perplexing question.Nowdays,Models of ANN reach to seval dozens kinds,and some kinds of ANN can be applied more then one algorithm,with the developing of ANN,new kinds of ANN and algorithms were fathered ceaselessly.Be dead against actual matter,pick out a fittest model of ANN, train type and algorithms, are problems that must be settled well.These days, In the field of intelligent computing, combining different kinds of intelligent computing method,so as to attain a hybird that draw strongpoint of each one,is a potential direction,Fuzzy Neural Network is a mature outcome in this direction,and have been put into practice in some field.In this thesis,we apply BP neural network and Fuzzy Neural Network based on T-S model to assess the quality of air.Under the help of MATLAB software,Design the whole net model,after iterative trial,we get systems that are practical in air quality assessment,realize the air quality assessment quickly and accurately,nay, and what’s more,By conceivable angles compar the two net model applied in the air quality assessment,we get a further comprehension about BP neural network and Fuzzy Neural network based on T-S model. This thinking, which adopt in air quality assessment,and air quality assess systems,can be generalized into many other problems.At last,new exploration about air quality assessment and Neural Nets learning were put forward.