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Static Calibration of the Tactical Grade Inertial Measurement Units

HAYAL, ADEM G.
http://rave.ohiolink.edu/etdc/view?acc_num=osu1285081598

Abstract Details

2010, Master of Science, Ohio State University, Geodetic Science and Surveying.
The demand for precise positioning grows up parallel to the advances in production of the geolocation instruments. Today, the Global Positioning System (GPS) is the most common positioning system in use because of its being very precise, convenient and cheap. However, when working in such areas that the external references (e.g. GPS satellites) are not available, a system that does not require information from any external source of information is required. Especially, these kinds of systems necessitate in detection of unexploded ordnances (UXO) buried in forestry areas, where precise position information is vital for removing them. The Inertial Navigation System (INS) operates in any environment and does not depended on any external source of information. It can operate alone or as an integrated system with GPS. However, the Inertial Measurement Unit (IMU) sensor outputs include some errors which can cause very large positioning errors. These errors can significantly be reduced by using calibration methods. The most accurate calibration methods are performed in laboratories and they require very precise instruments. However, the most significant IMU errors, biases and scale factor errors, change from turn on to turn on of the IMU and therefore they need to be estimated before every mission. The Multi-Position Calibration Method developed by Shin (2002) is a good example which is cost efficient and it can be applied in the field without use of any external calibration instrument. The method requires numerous IMU attitude measurements and use the gravity magnitude and Earth rotation rate as reference for calibration. The performance of the Multi-Position Calibration Method was tested by using a cart based geolocation system which includes 2 tactical grade IMUs, Honeywell HG1700 and HG1900. The calibration test was conducted in a parking lot of Ohio State University on 06 June 2010. The calibration estimations have shown that the navigation accuracy could be improved by up to 19.8% for the HG1700 and 17.8% for the HG1900. However, the results were not consistent among each other and in some cases decrease in the positioning accuracy was yielded.
Christopher Jekeli, Professor (Advisor)
Alan Saalfeld, Associate Professor (Committee Member)
118 p.
Engineering

Recommended Citations

Citations

  • HAYAL, A. G. (2010). Static Calibration of the Tactical Grade Inertial Measurement Units [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1285081598

    APA Style (7th edition)

  • HAYAL, ADEM. Static Calibration of the Tactical Grade Inertial Measurement Units. 2010. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1285081598.

    MLA Style (8th edition)

  • HAYAL, ADEM. "Static Calibration of the Tactical Grade Inertial Measurement Units." Master's thesis, Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1285081598

    Chicago Manual of Style (17th edition)

osu1285081598
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This open access ETD is published by The Ohio State University and OhioLINK.