Author(s)

Jiaming CHEN and Zhaohui LI

Corresponding Author

Jiaming CHEN

ABSTRACT

With the rapid development and promotion of science and technology. Location Based Service (LBS) play a more and more important role in Military research, scientific research and all aspects of people's lives. The core of the LBS is whether the positioning is accurate enough. The accuracy of positioning is the key to all applications. Nowadays, the mainstream of positioning technology are Global Positioning System (GPS) and Inertial Navigation System (INS).However, both approaches have advantages and disadvantages. INS has a strong anti-jamming capability and is not affected by terrain factors, but the accuracy will over time have a greater error. GPS positioning is very accurate. However, due to weather changes or building block and other factors GPS signals will fluctuate or even disappear. Therefore, the combination of GPS and INS is a good way to positioning. GPS is used to calibrate the INS for precise positioning. However, because GPS signals are affected by weather and terrain, how to use INS to locate in the time when GPS signal disappears is the core problem of positioning accuracy. In this paper, a new method of INS localization have been designed and implemented for this problem.

KEYWORDS

GPS, INS, X-IMU, Location.