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 摘要在城市振动功能区划中,居民文教区和混合区往往难以界定,其原因是两者之间存在着模糊区间。
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,本论文基于矢量gis,利用模糊数学、测量平差等知识,主要研究了如何建立模糊地理区域的位置和属性不确定性模型以及在建立地理信息不确定性模型后如何进行和模糊地理区域相关的空间拓扑关系分析。
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,本论文基于矢量gis,利用模糊数学、测量平差等知识,主要研究了如何建立模糊地理区域的位置和属性不确定性模型以及在建立地理信息不确定性模型后如何进行和模糊地理区域相关的空间拓扑关系分析。
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 然而现实世界中也存在大量的无明确空间范围的模糊地理区域,这类区域的边界往往难以测定,其不确定性也因为源自很多方面而难以控制,但是这类区域在gis分析中却也是相当重要的,所以必须研究模糊地理区域的不确定性并给出合理的位置和属性不确定性模型。
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 然而现实世界中也存在大量的无明确空间范围的模糊地理区域,这类区域的边界往往难以测定,其不确定性也因为源自很多方面而难以控制,但是这类区域在gis分析中却也是相当重要的,所以必须研究模糊地理区域的不确定性并给出合理的位置和属性不确定性模型。
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 由于模糊论域的量化等级是有限的,特别是在零域内,尽管有误差(误差很小),系统也被认为处于稳定状态,于是控制输出为零,即零域内的小偏差没有得到控制;再加上单模糊控制器在参数的选取时,既要考虑当误差较大时,控制系统的主要任务是消除误差;又要考虑当误差较小时,控制系统的主要任务是减小超调量、使系统尽快稳定下来。
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 本论文首先对模糊地理区域建立合理的数学模型和空间表达,然后拓展建立确定性地理区域的位置不确定性模型的方法建立模糊地理区域的位置不确定性模型,接着本论文讨论了如何建立模糊地理区域的属性不确定性模型,在建立了模糊地理区域的位置和属性不确定性模型的基础上本论文讨论了如何进行和模糊地理区域相关的空间拓扑关系分析,最后本论文给出了建立模糊地理区域的位置和属性不确定性模型的实际算例。
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 本论文首先对模糊地理区域建立合理的数学模型和空间表达,然后拓展建立确定性地理区域的位置不确定性模型的方法建立模糊地理区域的位置不确定性模型,接着本论文讨论了如何建立模糊地理区域的属性不确定性模型,在建立了模糊地理区域的位置和属性不确定性模型的基础上本论文讨论了如何进行和模糊地理区域相关的空间拓扑关系分析,最后本论文给出了建立模糊地理区域的位置和属性不确定性模型的实际算例。
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 本论文首先对模糊地理区域建立合理的数学模型和空间表达,然后拓展建立确定性地理区域的位置不确定性模型的方法建立模糊地理区域的位置不确定性模型,接着本论文讨论了如何建立模糊地理区域的属性不确定性模型,在建立了模糊地理区域的位置和属性不确定性模型的基础上本论文讨论了如何进行和模糊地理区域相关的空间拓扑关系分析,最后本论文给出了建立模糊地理区域的位置和属性不确定性模型的实际算例。
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 本论文首先对模糊地理区域建立合理的数学模型和空间表达,然后拓展建立确定性地理区域的位置不确定性模型的方法建立模糊地理区域的位置不确定性模型,接着本论文讨论了如何建立模糊地理区域的属性不确定性模型,在建立了模糊地理区域的位置和属性不确定性模型的基础上本论文讨论了如何进行和模糊地理区域相关的空间拓扑关系分析,最后本论文给出了建立模糊地理区域的位置和属性不确定性模型的实际算例。