Search results for: CHAN ALGORITHM

• New Indoor Positioning Algorithm for Distance Measurements

  Publication

  • A. Czapiewska

  - Year 2017

  In the paper a new indoor positioning algorithm is presented. This algorithm takes into account selected features of radio wave propagation in indoor environment. This results in improvement in accuracy of calculated position estimates. A comparative analysis of this new algorithm with Chan and Foy algorithms was made and described in the paper. This comparative analysis was made with utilization of real radio distance measurements.

• Comparison of new position estimation algorithm for indoor environment

  Publication

  • A. Czapiewska
  • J. Sadowski

  - Year 2014

  In the paper a new position estimation algorithm based on distance measurements is presented. This algorithm is dedicated for indoor environments. In the paper the new algorithm is compared with Chan algorithm. For the comparison were used real measurements conducted inside a building.

• Utilization of a Non-Linear Error Function in a Positioning Algorithm for Distance Measurement Systems Designed for Indoor Environments

  Publication

  • A. Czapiewska

  - Journal of Sensor and Actuator Networks - Year 2019

  A new positioning algorithm for distance measurement systems is outlined herein. This algorithm utilizes a non-linear error function which allows us to improve the positioning accuracy in highly difficult indoor environments. The non-linear error function also allows us to adjust the performance of the algorithm to the particular environmental conditions. The well-known positioning algorithms have limitations, mentioned by their...

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• Nowy wewnątrzbudynkowy algorytm wyznaczania położenia obiektów

  Publication

  • A. Czapiewska

  - Przegląd Telekomunikacyjny + Wiadomości Telekomunikacyjne - Year 2017

  W referacie zaprezentowano nowy wewnątrzbudynkowy algorytm wyznaczania położenia obiektów WAP. W algorytmie tym uwzględnia się właściwości środowiska propagacyjnego, dzięki czemu dokładność estymat położenia obiektów wyznaczonych algorytmem WAP jest większa niż wyznaczonych znanymi algorytmami Chana oraz Foy’a. W referacie przedstawiono wyniki analizy porównawczej tych trzech algorytmów z użyciem rzeczywistych pomiarów odległości...

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• Analysis of Position Calculating Methods in Indoor Environment

  Publication

  • A. Czapiewska

  - Year 2013

  In the paper a modified gradient method has been proposed for position calculation on basis of distance measurement in indoor environment. It is shown that the well-known Chan method of position calculation is inefficient in indoor circumstances. Author presents Chan and modified gradient methods and achieved results for each one for real measurements.