[ThC1] Novel Fiber Sensing Technologies

10:15 AM - 10:30 AM JST(1:15 AM - 1:30 AM UTC)

[ThC1-4] Phase Noise Suppression via Precise Eigen Frequency Measurement in IFOGs

○Xinyu Cao, Lanxin Zhu, Zhengbin Li (Peking Univ.)

Keywords:

Fiber-optic gyroscope,dual-channel,modulation frequency,phase noise suppression.

We propose a second harmonic descent algorithm for suppressing phase noise induced by modulation frequency deviation in dual-channel IFOGs, which reduces the relative modulation frequency error to 35 ppb and the ARW by 2.6-fold.