Search results for: FOY ALGORITHM

• Performance comparison of new modified gradient algorithm and Foy algorithm for iterative position calculation

  Publication

  • A. Czapiewska

  - Przegląd Telekomunikacyjny + Wiadomości Telekomunikacyjne - Year 2015

  In the paper a new position calculation algorithm is presented. It is proposed for indoor environments and is called modified gradient algorithm. This algorithm is compared with well-known Foy algorithm. The comparative analysis is based on real distance measurements conducted in indoor environment.

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• 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.

• 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 Accuracy of Modified Gradient Method in Indoor Radiolocalisation System

  Publication

  • J. Sadowski
  • A. Czapiewska

  - Year 2014

  In this paper a new method, called modified gradient method, has been proposed for position calculation on the basis of distance measurement in indoor environment. It is shown that well known method of position calculation such as Foy is inefficient in indoor environment. In this article is also described the indoor radiolocalisation system which was used for collecting distance measurements which were employed for further comparative...