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Position Estimation Based on Grid Cells and Self-Growing Self-Organizing Map.


ABSTRACT: As the basis of animals' natal homing behavior, path integration can continuously provide current position information relative to the initial position. Some neurons in freely moving animals' brains can encode current positions and surrounding environments by special firing patterns. Research studies show that neurons such as grid cells (GCs) in the hippocampus of animals' brains are related to the path integration. They might encode the coordinate of the animal's current position in the same way as the residue number system (RNS) which is based on the Chinese remainder theorem (CRT). Hence, in order to provide vehicles a bionic position estimation method, we propose a model to decode the GCs' encoding information based on the improved traditional self-organizing map (SOM), and this model makes full use of GCs' firing characteristics. The details of the model are discussed in this paper. Besides, the model is realized by computer simulation, and its performance is analyzed under different conditions. Simulation results indicate that the proposed position estimation model is effective and stable.

SUBMITTER: Li B 

PROVIDER: S-EPMC6413409 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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Position Estimation Based on Grid Cells and Self-Growing Self-Organizing Map.

Li Baozhong B   Liu Yanming Y   Li Hailin H  

Computational intelligence and neuroscience 20190226


As the basis of animals' natal homing behavior, path integration can continuously provide current position information relative to the initial position. Some neurons in freely moving animals' brains can encode current positions and surrounding environments by special firing patterns. Research studies show that neurons such as grid cells (GCs) in the hippocampus of animals' brains are related to the path integration. They might encode the coordinate of the animal's current position in the same wa  ...[more]

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