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SODERN公司研制了一种三轴稳定卫星精确对地定向用的新型红外敏感器,这是一种多用途敏感器,叫作STD15/16,用于地球同步轨道卫星(GEO)和低地球轨道卫星(LEO)的姿态测量。这项成果降低了价格,提高了测量性能,这种敏感器是在SPOT/ERS1卫星上用的STD12敏感器的基础上作了改进,仍采用双轨迹地球扫描。这种敏感器继承了空间飞行鉴定过的干润滑技术,并采用了地面鉴定过的技术,如门阵列和混合电路。STD15已根据地球同步轨道的环境条件作了鉴定,并将首次用于正在生产的法国TC2卫星上。STD16敏感器是在STD15型基础上略作改动,以适应LEO卫星,因为地球视在直径较大,主要改动了光学部分。STD16将用于SPOT4卫星和HELIOS军用侦察卫星。本文介绍这种新型敏感器的主要特点以及STD15鉴定模型的试验结果。
SODERN has developed a new type of infrared sensor for accurate three-axis stabilization of the satellites in the field, a multi-purpose sensor called the STD15 / 16 for geosynchronous orbit satellites (GEO) and low Earth orbit satellites (LEO) attitude measurement. The result was lower prices and improved measurement performance. The sensor was based on the STD12 sensor used on the SPOT / ERS1 satellite and still uses a two-track earth scan. This sensor inherits the dry-skid technology identified by spaceflight and employs surface-proven techniques such as gate arrays and hybrid circuits. The STD15 has been identified based on the environmental conditions of the geosynchronous orbit and will be used for the first time on the French production TC2 satellite. The STD16 sensor is slightly modified on the basis of the STD15 to accommodate LEO satellites, because the larger the apparent diameter of the Earth, the major changes in the optical part. The STD16 will be used on SPOT4 and HELIOS military reconnaissance satellites. This article describes the main features of this new sensor and the experimental results of the STD15 qualification model.