Dynamic north-finding scheme based on a fiber optic gyroscope

Sung-Jin Kim; Sang-Sik Lee; Yong-Soo Kwon; Jung-Chul Bae; Suk-Jeong Lee

doi:10.1117/12.277215

26 June 1997 Dynamic north-finding scheme based on a fiber optic gyroscope

Sung-Jin Kim, Sang-Sik Lee, Yong-Soo Kwon, Jung-Chul Bae, Suk-Jeong Lee

Author Affiliations +

Proceedings Volume 3087, Navigation and Control Technologies for Unmanned Systems II; (1997) https://doi.org/10.1117/12.277215
Event: AeroSense '97, 1997, Orlando, FL, United States

Abstract

In the gyrocompass system, the use of the fiber optic gyroscope (FOG) makes this traditional system considerably attractive because it has strong points in terms of weight, power, warming-up time, and cost. In this paper, a novel dynamic north-finding scheme based on a FOG, which can be applied to the gyrocompass system, is presented. The analytical model for the earth signal of the FOG is described, and the earth signals passed through lock-in amplifiers are modeled. Additionally, a north-finding algorithm using two lock-in amplifier outputs is developed, and the proposed scheme is organized by the developed algorithm. Simulation results are included to verify the performance of the proposed scheme.

Citation Download Citation

Sung-Jin Kim, Sang-Sik Lee, Yong-Soo Kwon, Jung-Chul Bae, and Suk-Jeong Lee "Dynamic north-finding scheme based on a fiber optic gyroscope", Proc. SPIE 3087, Navigation and Control Technologies for Unmanned Systems II, (26 June 1997); https://doi.org/10.1117/12.277215

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