MODELING ALBEDO EFFECTS IN COARSE SUN-SENSOR DATA FOR A SPINNING NANOSATELLITE

机译：旋转纳米卫星的粗太阳传感器数据中的阿尔贝多效应建模

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This paper describes progress made on modeling the effect of Earth albedo for attitude determination on the Local IONospheric Measurements Satellite. LionSat must rely on magnetometer and coarse sun-sensor data (from body-mounted solar panels on all ten faces) for attitude determination. Using data from the Total Ozone Mapping Spectrometer, a simplified albedo database model that averages reflectivity data across all longitudes (and across the 6-month mission lifetime) along with a geometric field-of-view model, one can model the albedo intensity at each panel on the satellite. A sun-vector is calculated using a nonlinear least-squares algorithm, with resulting errors of up to 5 degrees in sun-vector position. Simulations of the attitude determination and control system show that LionSat can achieve acceptable performance for scientific measurements.

机译：本文介绍了在模拟地球反照率对确定本地电离层测量卫星的姿态方面所取得的进展。 LionSat必须依靠磁力计和粗略的阳光传感器数据（来自十个面上的车载太阳能电池板）来确定姿态。使用来自总臭氧测图光谱仪的数据（一种简化的反照率数据库模型），该模型可对所有经度（以及整个6个月的任务寿命）的反射率数据进行平均，并结合几何视场模型，可以对每一个反射率进行建模卫星上的面板。使用非线性最小二乘算法计算太阳向量，结果太阳向量位置的误差最高为5度。姿态确定和控制系统的仿真表明，LionSat可以达到可接受的科学测量性能。

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来源
《AAS/AIAA Astrodynamics Conference; 20050807-11; South Lake Tahoe,CA(US)》|2006年|1203-1216|共14页
会议地点 South Lake TahoeCA(US)
作者
Timothy M. Meisenhelder; Robert G. Melton;
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Department of Aerospace Engineering, Pennsylvania State University, University Park, PA, 16802;

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原文格式 PDF
正文语种 eng
中图分类空气动力学;
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MODELING ALBEDO EFFECTS IN COARSE SUN-SENSOR DATA FOR A SPINNING NANOSATELLITE

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