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前言移动通信,作为无线通信技术的一翼,得到了迅速地发展和广泛地应用。移动通信的基础是无线通信技术,但是其场强计算和设计与固定无线通信有所不同。这是因为:固定无线通信的场强,基本上是不变的,并且通过适当选择接收地点和采用定向天线,可以避免或减少外界干扰的影响;而移动无线通信的场强,随着移动体的移动,将不断的、大幅度的、随机变化,并且由于工作区域在一个相当大的范围,因此外界干扰的影响必须考虑。
Foreword Mobile communication, as a wing of wireless communication technology, has been rapidly developed and widely used. The basis of mobile communications is wireless communication technology, but its field strength calculation and design differ from fixed wireless communications. This is because: the field strength of the fixed wireless communication is basically constant, and the impact of external interference can be avoided or reduced by appropriately selecting the receiving location and using the directional antenna; and the field strength of the mobile wireless communication, as the moving body The movement will continue, drastically, and randomly, and due to the work area in a fairly large area, the effects of outside interference must be considered.