Results 1 to 10 of about 680,911 (294)
Quaternion normalization in additive EKF for spacecraft attitude determination [PDF]
This work introduces, examines, and compares several quaternion normalization algorithms, which are shown to be an effective stage in the application of the additive extended Kalman filter (EKF) to spacecraft attitude determination, which is based on ...
Bar-Itzhack, I. Y. +2 more
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Sensors, 2010 In this paper, the problem of estimating the attitude of a micro-nano satellite, obtaining geomagnetic field measurements via a three-axis magnetometer and obtaining angle rate via gyro, is considered.
Huijuan Zhang, Peiling Cui
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Attitude determination using digital earth pictures [PDF]
A computer program called PICATT is reported, which stands for picture attitude determination. Described are the particular satellite to which this technique of attitude determination has been applied, the method of solution, and the results that have ...
Gunshol, L. P.
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Geodesy and Geodynamics, 2013 GPS-based attitude system is an important research field, since it is a valuable technique for the attitude determination of platforms. There exist two classes approaches for attitude determination using the GPS.
Wang Bing +4 more
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COBE ground segment attitude determination [PDF]
The Cosmic Background Explorer (COBE) spacecraft was launched in November 1989 by NASA to survey the sky for primordial radiation left from the Big Bang explosion.
Freedman, I. +3 more
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A general geometric theory of attitude determination from directional sensing [PDF]
A general geometric theory of spacecraft attitude determination from external reference direction sensors was presented. Outputs of different sensors are reduced to two kinds of basic directional measurements.
Fang, B. T.
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Attitude Determination System for a Cubesat Experiencing Eclipse. [PDF]
Sensors (Basel), 2023 Mmopelwa K +3 more
europepmc +1 more source
Quaternion normalization in spacecraft attitude determination [PDF]
Attitude determination of spacecraft usually utilizes vector measurements such as Sun, center of Earth, star, and magnetic field direction to update the quaternion which determines the spacecraft orientation with respect to some reference coordinates in ...
Bar-Itzhack, Itzhack Y. +2 more
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(Technical Note) Design and Construction of Star Tracker Platform in Order to Satellite Attitude Determination Based on Star Tracking Algorithm [PDF]
فصلنامه علوم و فناوری فضایی, 2016 Attitude Determining is one of the major and critical satellites space missions. In this study, a new method to Attitude determination of satellites is presented. Such that, based on the proposed method search space will be more limited then accuracy and
Malihe Hashemi +3 more
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Digital Sun Sensor Multi-Spot Operation
Sensors, 2012 The operation and test of a multi-spot digital sun sensor for precise sun-line determination is described. The image forming system consists of an opaque mask with multiple pinhole apertures producing multiple, simultaneous, spot-like images of the sun ...
Michele Grassi, Giancarlo Rufino
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