The purpose of this chapter is to familiarize the reader with the basic propagation characteristics that describe various wireless communication channels, such as terrestrial, atmospheric, and ionospheric for VHF to the X-band. Well-known stand

从 模糊数学与GIS 空间分析的基本理论入手,以基于模糊算法的城市警务预案GIS 空间分析为例,具体阐述模糊C 均 值的自适应算法在GIS 空间分析中的实际应用。-Fuzzy Mathematics and GIS from the basic theories of spatial analysis to the city based on fuzzy GIS spatial analysis of police plans, for example, specifically add

设计模式，观察者模式的源码实现，其中包含智能指针的使用-Design pattern, observer pattern in the source implementation, which includes the use of smart pointers

arcMap智能标注(Maplex)的妙用-点抽稀-Smart label (Maplex) Magical- point Rarefy