ITU-R P.528-3-2012
使用VHF,UHF和SHF波段的航空移动和无线电导航业务的传播曲线

Propagation curves for aeronautical mobile and radionavigation services using the VHF, UHF and SHF bands

ITU-R P.528-3-2012 发布历史

This Recommendation contains a method for predicting basic transmission loss in the frequency range 125-15 500 MHz for aeronautical and satellite services. The method uses an interpolation method on basic transmission loss data from sets of curves. These sets of curves are valid for ground-air, ground-satellite,air-air, air-satellite, and satellite-satellite links. The only data needed for this method are the distance between antennas, the heights of the antennas above mean sea level, the frequency, and the time percentage.This Recommendation, also, gives the calculations for the expected protection ratio or wanted-to-unwanted signal ratio exceeded at the receiver for at least 95% of the time, R (0.95). This calculation requires the following additional data for both the wanted and unwanted signals: the transmitted power, the gain of transmitting antenna, and the gain of receiving antenna.

ITU-R P.528-3-2012由国际电信联盟 IX-ITU 发布于 2012-02-01。

ITU-R P.528-3-2012 在中国标准分类中归属于: M53 雷达、导航设备与系统。

ITU-R P.528-3-2012的历代版本如下：

• 2012年02月01日 ITU-R P.528-3-2012 使用VHF,UHF和SHF波段的航空移动和无线电导航业务的传播曲线

标准号

ITU-R P.528-3-2012

发布日期

2012年02月01日

实施日期

废止日期

无

中国标准分类号

M53

发布单位

IX-ITU

引用标准

ITU-R 1

被代替标准

ITU-R P.528-3-1986

适用范围

This Recommendation contains a method for predicting basic transmission loss in the frequency range 125-15 500 MHz for aeronautical and satellite services. The method uses an interpolation method on basic transmission loss data from sets of curves. These sets of curves are valid for ground-air, ground-satellite,air-air, air-satellite, and satellite-satellite links. The only data needed for this method are the distance between antennas, the heights of the antennas above mean sea level, the frequency, and the time percentage.This Recommendation, also, gives the calculations for the expected protection ratio or wanted-to-unwanted signal ratio exceeded at the receiver for at least 95% of the time, R (0.95). This calculation requires the following additional data for both the wanted and unwanted signals: the transmitted power, the gain of transmitting antenna, and the gain of receiving antenna.