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Neural Network-Based Geometry Classification for Navigation Satellite Selection

Published online by Cambridge University Press:  13 May 2003

Dah-Jing Jwo
Affiliation:
National Taiwan Ocean University
Chien-Cheng Lai
Affiliation:
National Taiwan Ocean University

Abstract

The neural networks (NN)-based geometry classification for good or acceptable navigation satellite subset selection is presented. The approach is based on classifying the values of satellite Geometry Dilution of Precision (GDOP) utilizing the classification-type NNs. Unlike some of the NNs that approximate the function, such as the back-propagation neural network (BPNN), the NNs here are employed as classifiers. Although BPNN can also be employed as a classifier, it takes a long training time. Two other methods that feature a fast learning speed will be implemented, including Optimal Interpolative (OI) Net and Probabilistic Neural Network (PNN). Simulation results from these three neural networks are presented. The classification performance and computational expense of neural network-based GDOP classification are explored.

Type
Research Article
Copyright
© 2003 The Royal Institute of Navigation

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