Neural network based orbit prediction for a geostationary satellite

2001-05-23
An artificial Neural Network (NN) model was developed to estimate the semi-major axis (a), the eccentricity (e) and the inclination (i) of a geostationary satellite orbit. To facilitate a comparison between the NN model developed herewith and a real case, the TORKSAT lB geostationary satellite has been taken as example. A code that numerically solves the parameters of the TORKSAT's orbit, namely METUAEE1, is used to generate the training data for the NN model and to evaluate its performance. A Multi-Layer Perceptron (MLP) type NN model is constructed and it is trained by the Steepest Descent algorithm with one dimensional search. There are two different approaches studied for the estimation of the orbit parameters. In the first one the NN is trained 'on-line' while in the second one 'off-line' training is performed
2nd IFAC Workshop on Automatic Systems for Building the Infrastructure in Developing Countries (2001)

Suggestions

Neural network models as a management tool in lakes
Karul, C; Soyupak, S; Yurteri, C (Springer Science and Business Media LLC, 1999-01-01)
A research was made on the potential use of neural network based models in eutrophication modelling. As a result, an algorithm was developed to handle the practical aspects of designing, implementing and assessing the results of a neural network based model as a lake management tool. To illustrate the advantages and limitations of the neural network model, a case study was carried out to estimate the chlorophyll-a concentration in Keban Dam Reservoir as a function of sampled water quality parameters (PO4 ph...
Neural network method for direction of arrival estimation with uniform cylindrical microstrip patch array
Caylar, S.; Dural, G.; Leblebicioğlu, Mehmet Kemal (Institution of Engineering and Technology (IET), 2010-02-01)
In this study, a new neural network algorithm is proposed for real-time multiple source tracking problem with cylindrical patch antenna array based on a previously reported Modified Neural Multiple Source Tracking (MN-MUST) algorithm. The proposed algorithm, namely cylindrical microstrip patch array modified neural multiple source tracking (CMN-MUST) algorithm implements MN-MUST algorithm on a cylindrical microstrip patch array structure. CMN-MUST algorithm uses the advantage of directive pattern of microst...
Fuzzy neural network learning method for time series analysis using multivariate autoregression
Sisman, NA; Alpaslan, Ferda Nur (1998-11-13)
This paper describes how temporal fuzzy neural network model proposed in [4] can be applied to time series analysis when a multivariate autoregressive model is constructed. The fuzzy multivariate autoregression procedure is described first, then the temporal fuzzy neural network model using this procedure is presented.
Neural network based beamforming for linear and cylindrical array applications
Güreken, Murat; Dural Ünver, Mevlüde Gülbin; Department of Electrical and Electronics Engineering (2009)
In this thesis, a Neural Network (NN) based beamforming algorithm is proposed for real time target tracking problem. The algorithm is performed for two applications, linear and cylindrical arrays. The linear array application is implemented with equispaced omnidirectional sources. The influence of the number of antenna elements and the angular seperation between the incoming signals on the performance of the beamformer in the linear array beamformer is studied, and it is observed that the algorithm improves...
Neural network based online estimation of maneuvering steady states and control limits
Gürsoy, Gönenç; Yavrucuk, İlkay; Department of Aerospace Engineering (2010)
This thesis concerns the design and development of neural network based predictive algorithms to predict approaching aircraft limits. Therefore, approximate dynamics of flight envelope parameters such as angle of attack and load factor are constructed using neural network augmented dynamic models. Then, constructed models are used to predict steady state responses. By inverting the models and solving for critical controls at the known envelope limits, critical control inputs are calculated as well. The perf...
Citation Formats
A. T. Kutay, E. Tulunay, and O. Tekinalp, “Neural network based orbit prediction for a geostationary satellite,” Ochrid, Rep of Macedonia, 2001, vol. 34, p. 3, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/83644.