1 February 1991 Multimode fiber optic rotation sensor with low-cost digital signal processing
Author Affiliations +
Proceedings Volume 1367, Fiber Optic and Laser Sensors VIII; (1991) https://doi.org/10.1117/12.24737
Event: SPIE Microelectronic Interconnect and Integrated Processing Symposium, 1990, San Jose, United States
Abstract
Digital signal processing schemes which provide amplitude and phase tracking of PZT modulation harmonics in a fiber optic rotation rate sensor are presented. The estimation algorithm implementations are designed to be extremely low cost, yet sufficiently accurate and responsive to be compatible with a multimode fiber optic rotation rate sensor (FORS). A digital detector board, featuring a digital signal processor and simple 13-bit data conversion circuitry is utilized, along with an electronic FORS simulator and an external PC to provide the data acquisition and digital signal processing for the detection schemes. It is also demonstrated how false rate signals induced by PZT amplitude modulation instabilities in the multimode FORS may be eliminated in the signal processing.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Dean R. Johnson, Dean R. Johnson, Ronald J. Fredricks, Ronald J. Fredricks, S. C. Vuong, S. C. Vuong, David T. Dembinski, David T. Dembinski, Sehbaz H. Sabri, Sehbaz H. Sabri, } "Multimode fiber optic rotation sensor with low-cost digital signal processing", Proc. SPIE 1367, Fiber Optic and Laser Sensors VIII, (1 February 1991); doi: 10.1117/12.24737; https://doi.org/10.1117/12.24737
PROCEEDINGS
15 PAGES


SHARE
RELATED CONTENT


Back to Top