Design and Implementation of FOG Based Gyrocompass

Abstract:

A novel design of gyrocompass consisting of a single axis Fiber Optic Gyroscope (FOG) and a Theodolite is proposed to meet the requirements of low-cost, fast and high-precision. This algorithm uses FOG data and theodolite encoder feedback to determine Azimuth. Micro computer based software is also discussed which was developed for implementation of this scheme; finally test results and plots are briefly presented which proves effectiveness of the designed methodology. By this design an accuracy of 0.08^o is achieved in approximately 5 min time.

• Periodical: Applied Mechanics and Materials (Volume 332)
• Pages: 124-129
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.332.124
• Online since: July 2013
• Authors: Aqeel Abbas
• Keywords: Azimuth, Fog, Gyrocompass, North Finding, North Seeker, Pre-Launch Alignment

References

[1] Zhijun Zhang: Study on Technology of Orientation and North-Finding Based on Fiber Optic Gyroscope, Proceedings of the 2007 IEEE, International Conference on Mechatronics and Automation, (August 5 - 8, 2007), Harbin, China

DOI: 10.1109/icma.2007.4303903

[2] R.B. Dyott: Method for finding true North using a fiber optic gyroscope, Electronics Letters (23rd June 1994) Vol. 30 No. 13 P. 1087

DOI: 10.1049/el:19940692

[3] Zhang Zhijun: Error analysis and test study of fiber optic gyroscope north-finder, Proceedings of SPIE Vol. 5634

DOI: 10.1117/12.575997

[4] Chunning Liu: Design of an All-attitude North-finder; Seventh international Conference on Control, Automation, Robotics and Vision, (Dec 2002), Singapore

DOI: 10.1109/icarcv.2002.1235005

[5] Jun Shen: Design and Realization of Low-cost, Fast and High precision FOG North Finder, (2010) International Conference on Electrical and Control Engineering

DOI: 10.1109/icece.2010.177

[6] Hua Sun: Design and Implementation of Fiber Optic Gyro North-Seeker, Proceedings of the 2010 IEEE, International Conference on Mechatronics and Automation; (August 4-7, 2010), Xi'an, China

DOI: 10.1109/icma.2010.5589722

[7] Tomohiro Tanaka: Automatic north sensor using a fiber-optic gyroscope; Applied Optics / Vol. 33, No. 1 / 1 January (1994)

[8] G. Eduardo Sandoval-Romero and Victor Argueta-Diaz: A simple theoretical Comparison between Two Basic Schemes in Function of Earth's North Pole Detection: The Static Method; Journal of Sensors Vol. 2010, Art. ID 253642.

DOI: 10.1155/2010/253642

[9] Steven Emge, Thomas Monte, Jeff Brunner, James Rossi, Robert Miller and Kalyan Ganesan: Advances in Open-loop FOG Sensor, Optical Society of America, (2006)

DOI: 10.1364/ofs.2006.mc3

[10] P. Dyrna: Test Methods and Test Facilities to Determine Fiber Optical Gyro Characteristics at IABG Inertial Test Laboratory, Symposium Gyro Technology (1988), Stuttgart, Germany

[11] IEEE Standards Specification Format Guide and Test Procedure for Single-Axis Interferometeric Fiber Optic Gyros, The Institute of Electrical and Electronics Engineers Inc. New York, USA

DOI: 10.1109/ieeestd.1998.86153