It is difficult to divide the residential and educational functional zone from comprehensive functional zone due to the presence of fuzzy area between them in the the urban vibration functional zoning 摘要在城市振動(dòng)功能區(qū)劃中,居民文教區(qū)和混合區(qū)往往難以界定,其原因是兩者之間存在著模糊區(qū)間。
Therefore, this thesis mainly researches that how to set up the uncertainty model of fuzzy area and how to analyze the topological relation about fuzzy areas, based on the vector gis and using some knowledge including fuzzy mathematics and measure adjustment and so on 因此,本論文基于矢量gis,利用模糊數(shù)學(xué)、測(cè)量平差等知識(shí),主要研究了如何建立模糊地理區(qū)域的位置和屬性不確定性模型以及在建立地理信息不確定性模型后如何進(jìn)行和模糊地理區(qū)域相關(guān)的空間拓?fù)潢P(guān)系分析。
Therefore, this thesis mainly researches that how to set up the uncertainty model of fuzzy area and how to analyze the topological relation about fuzzy areas, based on the vector gis and using some knowledge including fuzzy mathematics and measure adjustment and so on 因此,本論文基于矢量gis,利用模糊數(shù)學(xué)、測(cè)量平差等知識(shí),主要研究了如何建立模糊地理區(qū)域的位置和屬性不確定性模型以及在建立地理信息不確定性模型后如何進(jìn)行和模糊地理區(qū)域相關(guān)的空間拓?fù)潢P(guān)系分析。
However, there are also large numbers of fuzzy areas without specific boundaries in the real world . these areas " boundaries are normally difficult to locate, and their uncertainties are difficult to control because their uncertainties come from many facets . but these areas are very important in the analyzing of gis, so it is essential to research the uncertainties of fuzzy areas and make the sound models 然而現(xiàn)實(shí)世界中也存在大量的無明確空間范圍的模糊地理區(qū)域,這類區(qū)域的邊界往往難以測(cè)定,其不確定性也因?yàn)樵醋院芏喾矫娑y以控制,但是這類區(qū)域在gis分析中卻也是相當(dāng)重要的,所以必須研究模糊地理區(qū)域的不確定性并給出合理的位置和屬性不確定性模型。
However, there are also large numbers of fuzzy areas without specific boundaries in the real world . these areas " boundaries are normally difficult to locate, and their uncertainties are difficult to control because their uncertainties come from many facets . but these areas are very important in the analyzing of gis, so it is essential to research the uncertainties of fuzzy areas and make the sound models 然而現(xiàn)實(shí)世界中也存在大量的無明確空間范圍的模糊地理區(qū)域,這類區(qū)域的邊界往往難以測(cè)定,其不確定性也因?yàn)樵醋院芏喾矫娑y以控制,但是這類區(qū)域在gis分析中卻也是相當(dāng)重要的,所以必須研究模糊地理區(qū)域的不確定性并給出合理的位置和屬性不確定性模型。
Because quantitative grade of fuzzy area is limited, especially zero area, the system is regarded as stable condition though it has little error . therefore, the output of control is zero, namely the little error of zero area is n't be controlled . in addtion, in the process of the choice of parameters of single fuzzy controller, not only should we consider that when error is large, the main task of control system is to eliminate error, but also we should consider that when error is little, the main task of control system, is to diminish super regulation, so that the system can be stable more quickly . from the view of the control results, there exists little error when system is stable, namely so-called stable error 由于模糊論域的量化等級(jí)是有限的,特別是在零域內(nèi),盡管有誤差(誤差很小),系統(tǒng)也被認(rèn)為處于穩(wěn)定狀態(tài),于是控制輸出為零,即零域內(nèi)的小偏差沒有得到控制;再加上單模糊控制器在參數(shù)的選取時(shí),既要考慮當(dāng)誤差較大時(shí),控制系統(tǒng)的主要任務(wù)是消除誤差;又要考慮當(dāng)誤差較小時(shí),控制系統(tǒng)的主要任務(wù)是減小超調(diào)量、使系統(tǒng)盡快穩(wěn)定下來。
This thesis first puts forward the sound mathematic model and spatial expression, and then sets up the position uncertainty model of fuzzy area using the method of setting up the position uncertainty model of specific area . moreover, this thesis researches how to set up the attribute uncertainty model of fuzzy area . after setting up the position and attribute uncertainty model of fuzzy area, this thesis researches how to analyze the topological relation about fuzzy area 本論文首先對(duì)模糊地理區(qū)域建立合理的數(shù)學(xué)模型和空間表達(dá),然后拓展建立確定性地理區(qū)域的位置不確定性模型的方法建立模糊地理區(qū)域的位置不確定性模型,接著本論文討論了如何建立模糊地理區(qū)域的屬性不確定性模型,在建立了模糊地理區(qū)域的位置和屬性不確定性模型的基礎(chǔ)上本論文討論了如何進(jìn)行和模糊地理區(qū)域相關(guān)的空間拓?fù)潢P(guān)系分析,最后本論文給出了建立模糊地理區(qū)域的位置和屬性不確定性模型的實(shí)際算例。
This thesis first puts forward the sound mathematic model and spatial expression, and then sets up the position uncertainty model of fuzzy area using the method of setting up the position uncertainty model of specific area . moreover, this thesis researches how to set up the attribute uncertainty model of fuzzy area . after setting up the position and attribute uncertainty model of fuzzy area, this thesis researches how to analyze the topological relation about fuzzy area 本論文首先對(duì)模糊地理區(qū)域建立合理的數(shù)學(xué)模型和空間表達(dá),然后拓展建立確定性地理區(qū)域的位置不確定性模型的方法建立模糊地理區(qū)域的位置不確定性模型,接著本論文討論了如何建立模糊地理區(qū)域的屬性不確定性模型,在建立了模糊地理區(qū)域的位置和屬性不確定性模型的基礎(chǔ)上本論文討論了如何進(jìn)行和模糊地理區(qū)域相關(guān)的空間拓?fù)潢P(guān)系分析,最后本論文給出了建立模糊地理區(qū)域的位置和屬性不確定性模型的實(shí)際算例。
This thesis first puts forward the sound mathematic model and spatial expression, and then sets up the position uncertainty model of fuzzy area using the method of setting up the position uncertainty model of specific area . moreover, this thesis researches how to set up the attribute uncertainty model of fuzzy area . after setting up the position and attribute uncertainty model of fuzzy area, this thesis researches how to analyze the topological relation about fuzzy area 本論文首先對(duì)模糊地理區(qū)域建立合理的數(shù)學(xué)模型和空間表達(dá),然后拓展建立確定性地理區(qū)域的位置不確定性模型的方法建立模糊地理區(qū)域的位置不確定性模型,接著本論文討論了如何建立模糊地理區(qū)域的屬性不確定性模型,在建立了模糊地理區(qū)域的位置和屬性不確定性模型的基礎(chǔ)上本論文討論了如何進(jìn)行和模糊地理區(qū)域相關(guān)的空間拓?fù)潢P(guān)系分析,最后本論文給出了建立模糊地理區(qū)域的位置和屬性不確定性模型的實(shí)際算例。
This thesis first puts forward the sound mathematic model and spatial expression, and then sets up the position uncertainty model of fuzzy area using the method of setting up the position uncertainty model of specific area . moreover, this thesis researches how to set up the attribute uncertainty model of fuzzy area . after setting up the position and attribute uncertainty model of fuzzy area, this thesis researches how to analyze the topological relation about fuzzy area 本論文首先對(duì)模糊地理區(qū)域建立合理的數(shù)學(xué)模型和空間表達(dá),然后拓展建立確定性地理區(qū)域的位置不確定性模型的方法建立模糊地理區(qū)域的位置不確定性模型,接著本論文討論了如何建立模糊地理區(qū)域的屬性不確定性模型,在建立了模糊地理區(qū)域的位置和屬性不確定性模型的基礎(chǔ)上本論文討論了如何進(jìn)行和模糊地理區(qū)域相關(guān)的空間拓?fù)潢P(guān)系分析,最后本論文給出了建立模糊地理區(qū)域的位置和屬性不確定性模型的實(shí)際算例。