论文部分内容阅读
陆地移动通信中的无线信道要根据两项质量指标来进行设计。这两项指标是:(1)所需传输质量;(2)在恶劣的传播条件下,无线区域内难以确保传输质量的场所比率—恶化率。本文基于这种无线信道设计思想,阐明了发射功率和频率复用距离的设计方法。文中指出,对于热噪声以及同频干扰等引起传输质量下降的因素,恶化率的分配可以独立进行,并将发射功率以及频率复用距离的设计方法归纳成实用、方便的设计程序图。而且,还说明了将本设计方法用于小区方式时设计上的注意要点,同时,举例说明了数字移动通信系统的无线信道设计。
The wireless channel in land mobile communication should be designed according to two quality indicators. These two indicators are: (1) the quality of the transmission required; and (2) the rate of deterioration - the deterioration rate - that is difficult to ensure the quality of transmission in the wireless area under poor propagation conditions. Based on this idea of wireless channel design, this paper illustrates the design of transmit power and frequency reuse distance. The article pointed out that the thermal noise and co-channel interference caused by factors such as transmission quality degradation rate of distribution can be independently carried out, and the transmit power and frequency reuse distance induction method summarized into a practical and convenient design process map. Moreover, it also describes the design of the method used in the design of the cell point of attention, at the same time, an example of the digital mobile communication system wireless channel design.