Noise decomposition and parameter optimization method for high sensitivity fiber optic gyroscope  

作　　者：TENG Fei JIN Jing ZHANG ZuChen DU ShiSen SONG NingFang ZHANG ChunXi 

机构地区：[1]School of Instrument Science and Opto-electronics Engineering, Beihang University (BUAA) [2]Technical Institute of Physics and Chemistry of CAS

出　　处：《Science China(Technological Sciences)》2015年第6期1118-1124,共7页中国科学（技术科学英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.61201314)

摘　　要：A novel random walk coefficient(RWC) model of the interferometric fiber optic gyroscope(IFOG) to decompose fundamental noise sources, namely the shot noise, the excess noise, the thermal noise, and the detection circuit noise, from the overall noise was developed. The coefficients of the model were extracted from the measured RWC instead of by calculating the accurate IFOG parameters, which is simpler and more accurate. The correctness and the accuracy of the model were verified by experiments. Using this model, the RWC of the experimental IFOG was predicted and the quantitative contributions of the noise sources were determined. According to the predicted results, the parameters of the IFOG were optimized. Finally, based on the model, a noise decomposition and parameter optimization method was proposed for high sensitivity IFOG design.

关 键 词：fiber optic gyroscopes noise decomposition random walk parameter optimization 

分 类 号：TN253[电子电信—物理电子学]