中国空间科学技术

中国空间科学技术

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以太阳为射电源直接测量天线G／T

路丕业，赵维元   

  1. 中国遥感卫星地面站
  • 发布日期:1995-02-25

DIRECTLY MEASURING ANTENNA G/T BY USING SUN AS A RADIO SOURCE

Lu Peiye;Zhao Weiyuan(Chinese Remote Sensing Satellite Ground Station, Beijing 100086)   

  • Online:1995-02-25

摘要： 介绍以太阳为射电源，直接测量扩充后中国陆地卫星地面接收站，３个数据通道天线的Ｇ／Ｔ性能．对固定通道，测量了Ｌａｎｄｓａｔ—５下行频率的Ｇ／Ｔ～α（天线俯仰角）性能曲线；对可变通道，在α＝５°、３０°时，测量了Ｌａｎｄｓａｔ—６、ＪＥＲＳ—１、ＥＲＳ—１、ＳＰＯＴ卫星、ＺＹ—１卫星下行频率的Ｇ／Ｔ性能，以及可变通道的Ｇ／Ｔ～ｆ性能曲线，最后进行了误差分析．

关键词: 地球站天线, 增益噪声温度比, 测量, 误差分析

Abstract: his paper introduces direct measurement of the antenna G/ T performance in three data channels by using the sun as a radio source after the Chinese Landsat Ground receiving station is upgraded.For fixed-turned data channels, antenna G/ T～α(antenna elevation angle) performance curves of the Landsat-5 down link frequency arc measured. For tuned data channels. G/ T the performance characteristics of Landsat-6. JERS-1. ERS-1. SPOT and ZY-1 Satellites down link frequencies are measured in the case of a equal to 5°and 30°.Finally the Error analysis is presented.