Accuracy Analysis on GDOP of Pseudolite Positioning System Based on TDOA Technology

2020 ◽  
pp. 456-467
Author(s):  
Li Li ◽  
Yiqin Cao ◽  
Hongwei Zhao
Keyword(s):  
Positioning System ◽  
Accuracy Analysis

scholarly journals INVESTIGATION OF PRACTICAL AND THEORETICAL ACCURACY OF WIRELESS INDOOR POSITIONING SYSTEM UBISENSE

2013 ◽  
Vol 95 (1) ◽  
pp. 36-48 ◽  
Author(s):  
Marek Woźniak ◽  
Waldemar Odziemczyk ◽  
Kamil Nagórski
Keyword(s):  
Reference Points ◽  
Positioning System ◽  
Accuracy Analysis ◽  
Positioning Accuracy ◽  
Test Measurement ◽  
Calibration Accuracy ◽  
Indoor Positioning System ◽  
Orientation Parameters ◽  
Measurement Area ◽  
Theoretical Accuracy

Abstract This paper presents the accuracy investigation results and functionality of Ubisense RTLS positioning system. Three kinds of studies were conducted: test of calibration accuracy, analysis of theoretical accuracy of the coordinates determination as well as accuracy measurements in field conditions. Test of calibration accuracy was made with several different geometric constellation of reference points (tag positions). We determined changes of orientation parameters of receivers and disturbance of positioning points coordinates against chosen reference points constellations. Analysis of theoretical accuracy was made for several receivers spatial positions and their orientations. It allowed to indicate favourable and unfavourable measurement area considering accuracy and reliability. Real positioning accuracy of the Ubisense system was determined by comparison with coordinates measured using precise tacheometer TCRP1201+. Results of conducted experiments and accuracy analysis of test measurement were presented in figures and diagrams.

scholarly journals Accuracy Analysis of GNSS (GPS, GLONASS and BEIDOU) Obsevation For Positioning

2019 ◽  
Vol 94 ◽  
pp. 01019
Author(s):  
Khomsin ◽  
Ira Mutiara Anjasmara ◽  
Danar Guruh Pratomo ◽  
Wahyu Ristanto
Keyword(s):  
Global Positioning System ◽  
Global Navigation Satellite System ◽  
Satellite System ◽  
Positioning System ◽  
Navigation Satellite ◽  
Accuracy Analysis ◽  
Global Positioning ◽  
The Future ◽  
Global Navigation ◽  
Global Navigation Satellite

Global Navigation Satellite System called GNSS is a term used for the entire global navigation that already operate or are in the planning for the future. Some of the satellite that can be used are GPS (Global Positioning System) operated by USA, GLONASS (Global Navigation Satellite System) operated by Rusia and BeiDou/Compass operated by China. Many errors and biases that occur when measuring with GNSS in the field. Theoritically, there are some errors and biases that can be eliminated or subtracted by strength of satellite geometric. One factor to get a good satellite geometric is to increase the number of satellites received by receiver. In general, the more number of satellites received, the better the geometric satellites received by receivers. The development of receiver technology is currently able to capture GPS, GLONASS and BeiDou signals at one time. Thus the receiver can receive many satellites and finally the shape of geometric satellite becomes better. HiTarget V30 is one of the latest GNSS technology on the market today. This receiver is capable of receiving GPS signals, GLONASS and BeiDou at one time of observation. This research will compare the accuracy of positioning using GPS, GLONASS and BeiDou satellite.

scholarly journals Accuracy Analysis of a Wireless Indoor Positioning System Using Geodetic Methods

2017 ◽  
Vol 104 (1) ◽  
pp. 1-19
Author(s):  
Przemysław Wagner ◽  
Marek Woźniak ◽  
Waldemar Odziemczyk ◽  
Dariusz Pakuła
Keyword(s):  
Wide Band ◽  
Indoor Positioning ◽  
Graphical Form ◽  
Positioning System ◽  
Accuracy Analysis ◽  
Positioning Systems ◽  
Practical Test ◽  
System Components ◽  
Indoor Positioning System ◽  
Theoretical Accuracy

Abstract Ubisense RTLS is one of the Indoor positioning systems using an Ultra Wide Band. AOA and TDOA methods are used as a principle of positioning. The accuracy of positioning depends primarily on the accuracy of determined angles and distance differences. The paper presents the results of accuracy research which includes a theoretical accuracy prediction and a practical test. Theoretical accuracy was calculated for two variants of system components geometry, assuming the parameters declared by the system manufacturer. Total station measurements were taken as a reference during the practical test. The results of the analysis are presented in a graphical form. A sample implementation (MagMaster) developed by Globema is presented in the final part of the paper.

Aplikasi Pemosisi Lokal Berbasis Android Dengan Menggunakan GPS

INTI TALAFA ◽  
2018 ◽  
Vol 8 (2) ◽  
Author(s):  
Yaman Khaeruzzaman
Keyword(s):  
Global Positioning System ◽  
Positioning System ◽  
Database Server ◽  
Global Positioning

Seiring dengan pesatnya kemajuan teknologi saat ini, kebutuhan manusia menjadi lebih beragam, termasuk kebutuhan akan informasi. Tidak hanya media informasinya yang semakin beragam, jenis informasi yang dibutuhkan juga semakin beragam, salah satunya adalah kebutuhan informasi akan posisi kita terhadap lingkungan sekitar. Untuk memenuhi kebutuhan itu sebuah sistem pemosisi diciptakan. Sistem pemosisi yang banyak digunakan saat ini cenderung berfokus pada lingkup ruang yang besar (global) padahal, dalam lingkup ruang yang lebih kecil (lokal) sebuah sistem pemosisi juga diperlukan, seperti di ruang-ruang terbuka umum (taman atau kebun), ataupun dalam sebuah bangunan. Sistem pemosisi lokal yang ada saat ini sering kali membutuhkan infrastruktur yang mahal dalam pembangunannya. Aplikasi Pemosisi Lokal Berbasis Android dengan Menggunakan GPS ini adalah sebuah aplikasi yang dibangun untuk memenuhi kebutuhan pengguna akan informasi lokasi dan posisi mereka terhadap lingkungan di sekitarnya dalam lingkup ruang yang lebih kecil (lokal) dengan memanfaatkan perangkat GPS (Global Positioning System) yang telah tertanam dalam perangkat smartphone Android agar infrastruktur yang dibutuhkan lebih efisien. Dalam implementasinya, Aplikasi Pemosisi Lokal ini bertindak sebagai klien dengan dukungan sebuah Database Server yang berfungsi sebagai media penyimpanan data serta sumber referensi informasi yang dapat diakses melalui jaringan internet sehingga tercipta sebuah sistem yang terintegrasi secara global. Kata kunci: aplikasi, informasi, pemosisi, GPS.

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