GB/T 11299.5-1989
卫星通信地球站无线电设备测量方法 第1部分:分系统和分系统组合通用的测量 第5节:噪声温度测量
Methods of measurement for radio equipment used in satellite earth stations--Part 1: Measurements common to sub-systems and combinations of sub-systems--Section Five: Noise temperature measurements