摘要
本文给出了无线电波在空间传输时损耗的计算方法,列举了最常用的定轨卫星系统、地面蜂窝移动通信系统和地面无线宽带接入系统中的无线电波传输,给出了各系统中常用的发射电平和接收机的最小灵敏度,可以计算出各系统的覆盖范围。
Inlfuence factors of radio transmitting in the space has a lot of. This paper presents a method of calculation of radio wave transmission loss in space; Lists the most common radio transmission of orbit satellite system, ground cellular mobile communication system, the wireless broadband access system; Gives the emission levels used in the system and receiver’s minimum sensitivity. What can be used to calculate the coverage of each system.
出处
《数字通信世界》
2014年第10期8-10,共3页
Digital Communication World
