FY-2卫星云图成像基准与模拟遥测关系的分析

“风云二号”（ＦＹ－２）云图成像基准是由精太阳脉冲、南地中信号或北地中信号组成，相应的模拟遥测值反映了它们之间的相对变化关系，选择不同的云图成像基准，模拟遥测值对应变化；对于相同的云图成像基准，地面测试与卫星在轨运行时，与模拟遥测值的对应变化关系是一致的。本文就这些关联的变化关系进行具体的分析，提供了计算方法，并给出了实用的计算结果。

ANALYSIS ON THE RELATION OF CLOUD PICTURE IMAGING STANDARD AND SIMULATED TELEMETRY FOR FY-2 METEOSAT

The cloud picture imaging standard for FY 2 consists of Sun signal, South earth signal or North earth signal. The simulated telemetry values are changed relatively with their relations. When the satellite uses different imaging standard, the simulated telemetry values will be changed relatively. When the satellite works on orbit or is testing on ground, the relative changing laws of simulated telemetry values are consistent with the same cloud picture imaging standards. This article analyzes these relative changing relations and gives the calculating ways and practical results.