Hybrid GPS/GSM localization of mobile terminals using the extended Kalman filter

@article{Fritsche2009HybridGL,
  title={Hybrid GPS/GSM localization of mobile terminals using the extended Kalman filter},
  author={Carsten Fritsche and Anja Klein and Dominique W{\"u}rtz},
  journal={2009 6th Workshop on Positioning, Navigation and Communication},
  year={2009},
  pages={189-194}
}
In dense urban and indoor scenarios, the Global Positioning System (GPS) often cannot provide reliable mobile terminal (MT) location estimates, due to the attenuation or complete shadowing of the satellite signals. Cellular radio network-based localization methods, however, provide MT location estimates in almost every scenario, but they do not reach the accuracy of MT location estimates provided by GPS. Thus, a promising approach is to combine measured values from the cellular radio network… CONTINUE READING

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