Mohammad Rezaei; mohammad mirzaei; hamid gholami baie
Volume 11, Issue 3 , December 2018, , Pages 33-45
Abstract
Demand for positioning services with proper coverage and high accuracy has been increased rapidly in recent years. A global positioning system solves many users’ requirements and presents positioning services with global coverage and proper accuracy. However, satellite-based positioning systems ...
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Demand for positioning services with proper coverage and high accuracy has been increased rapidly in recent years. A global positioning system solves many users’ requirements and presents positioning services with global coverage and proper accuracy. However, satellite-based positioning systems are made and control by Developed countries and their precise location services are rarely available to civilians and other countries. Also, the signals of the satellite systems are fallible and low-power, and are not suitable for closed locations. The use of a local positioning system along with global positioning is one of the programs that governments are urging in the future to enhance the reliability of the positioning, increase coverage of users and reduce the system error. In this research, after introducing local positioning system and its most important applications, its indicators will be compared with international positioning standards and its market in Iran will be analyzed.
Mahdi Jafari; Arash Sangary; Jafar Roshanyan
Volume 5, Issue 3 , October 2012, , Pages 11-19
Abstract
The Inertial navigation system is an ideal solution for motion detection with high accuracy with fast dynamics, but the precise location and status of the system output can be significantly reduced over time. On the other hand, global positioning system is able to determine its position with an average ...
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The Inertial navigation system is an ideal solution for motion detection with high accuracy with fast dynamics, but the precise location and status of the system output can be significantly reduced over time. On the other hand, global positioning system is able to determine its position with an average accuracy around the earth. But the GPS alone isn’t enough for navigation of orbital modules, because it doesn’t have situation of orbital modules. The integrated inertial navigation system with global positioning system is a low cost method of providing an accurate and reliable navigation system in the civilian and military aerospace applications. In this paper, using the extended Kalman filter, we design an algorithm to estimate error of sensors, navigation and GPS. This method can be widely used in the integrated navigation INS / GPS in aerospace applications and provides an accurate navigation.
