Abstract: In order to eliminate the impact of undesirable disturbance of the all-fiber interferometer system, a resistance varying disturbance. It uses two interference signal with a constant phase difference, simple signal conditioning and math, the elimination of the useful signal-to-noise ratio in the single-channel signal is vulnerable to the optical path offset phase angle and modulation phase difference of the size of the impact, while improving the signal quality. The experiments show that the system can effectively eliminate the disturbance noise coupler splitting ratio without strict requirements, more practical.
不好意思,是用Google翻译翻译的
Abstract: In order to eliminate the impact of negative disturbance on the all-optical-fiber interferential system, a new method to resist time-varying disturbance is proposed. It uses two routes of interferential signals with a constant phase difference, to avoid, by means of simple signal modulation and mathematic computation, the problem that the useful signal to noise ratio in the single-channel signal easily affected by the differences of optical path bias phase angle and modulation phase difference, while improving the quality of signals. Experiments show that the system can effectively eliminate the disturbing noise without strict requirements on coupler prismatic ratio, and is more practical.