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:: Volume 7, Issue 4 (3-2020) ::
jgit 2020, 7(4): 21-40 Back to browse issues page
Solving the local positioning problem using a four-layer artificial neural network
Mehrdad Kaveh * , Mohammad Saadi Mesgari , Ali Khosravi
K.N. Toosi University of Technology
Abstract:   (3010 Views)
Today, the global positioning systems (GPS) do not work well in buildings and in dense urban areas when there is no lines of sight between the user and their satellites. Hence, the local positioning system (LPS) has been considerably used in recent years. The main purpose of this research is to provide a four-layer artificial neural network based on nonlinear system solver (NLANN) for local positioning problem. To evaluate the performance of artificial neural network, three methods of gauss-newton (GN), genetic algorithm (GA) and hybrid particle swarm optimization (HPSO) have been used. The results indicate that the proposed model has high accuracy. The accuracy of the artificial neural network on the simulated data is 0.05 m, while the best accuracy in other algorithms is about 0.45 meters. In the data of Italy's GPS network, the artificial neural network has been reached to accuracy below 10 cm in one minute. Also, artificial neural network has better accuracy in different dimensions of study area and different signal to noise ratio (SNR), and by increasing the number of stations, it has achieved good results in less time. Whereas other algorithms have not get well accuracy. However, the HPSO has better results related to GA and GN algorithms.
Keywords: Local positioning system (LPS), artificial neural network based on nonlinear system solver (NLANN), gauss-newton (GN), genetic algorithm (GA), hybrid particle swarm optimization (HPSO).
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Type of Study: Research | Subject: GIS
Received: 2018/01/7 | Accepted: 2018/06/30 | Published: 2020/03/19
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Kaveh M, Mesgari M S, Khosravi A. Solving the local positioning problem using a four-layer artificial neural network. jgit 2020; 7 (4) :21-40
URL: http://jgit.kntu.ac.ir/article-1-761-en.html

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Volume 7, Issue 4 (3-2020) Back to browse issues page
نشریه علمی-پژوهشی مهندسی فناوری اطلاعات مکانی Engineering Journal of Geospatial Information Technology
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