Hybird navigation system using neural network
First Claim
1. A hybrid navigation system comprising:
- a GPS signal processor for receiving GSP signals from satellites to determine positions of the mobile terminal;
a TDOA signal processor for receiving localization signals from stations of the mobile communication system to determine positions of the mobile terminal; and
a neural network for learning and predicting the positions of the mobile terminal based on signals received from the GPS signal processor and the TDOA signal processor.
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Accused Products
Abstract
A hybrid navigation system including a neural network is provided. The hybrid navigation system includes a global positioning system (GPS) as a main system using satellites and a radio determination system when there are difficulties in reception of signals from the satellites. The hybrid navigation system comprises a GPS signal processor, a TDOA signal processor and a neural network. The GPS signal processor receives GPS signals from the satellites to determine positions. The TDOA signal processor receives determination signals from mobile communication stations to determine positions. The neural network uses position values inputted from each of the GPS signal processor and the TDOA signal processor to learn and predict the position of the mobile terminal.
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Citations
12 Claims
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1. A hybrid navigation system comprising:
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a GPS signal processor for receiving GSP signals from satellites to determine positions of the mobile terminal;
a TDOA signal processor for receiving localization signals from stations of the mobile communication system to determine positions of the mobile terminal; and
a neural network for learning and predicting the positions of the mobile terminal based on signals received from the GPS signal processor and the TDOA signal processor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of determining positions of a mobile terminal, comprising:
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receiving position values determined with the GPS and the TDOA system;
learning the determined position information by a neural network in case that the number of the GPS signal is four or more;
estimating a present position of the mobile terminal with the GPS; and
estimating positions of the mobile terminal with the TDOA system including the learned neural network in case that the number of the received GPS signals is less than four and the total number of the received GPS and TDOA signals is three or more; and
initializing the GPS and the TDOA system in case that the total number of the received GPS and TDOA signals is less than three. - View Dependent Claims (10, 11, 12)
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Specification