摆动扫描式地球敏感器电信号源研究

摆动扫描式地球敏感器常采用电信号源作为激励参与卫星地面测试.为更真实揭示敏感器自身特性以及减小信号源误差，推导了敏感器测量方程和扫描方程，分析了电信号源的误差来源，并提出了改进的地球敏感器信号源实现算法.该方法概念清晰，计算量小.试验测试结果表明该算法提高了地球敏感器信号源精度.

On the Electrical Signal Source of Swing Scanning Earth Sensor

Electrical signal source is often used to excite swing scanning earth sensor during the ground test of satellite.In order to reveal sensor’s actual characteristics and reduce the electrical source error, measurement model and scanning equation of sensor are deduced in this paper.The electrical source error is analyzed theoretically, and then an improved method is introduced. This method has clear concept and little computational requirement. Test results demonstrate that the high precision of sensor electrical source can be achieved with this algorithm.