THE APPLICATION OF ADVANCED PROCESSING TECHNIQUE TO THE TRIAD OF PRECISION LASER GYROSCOPES

摘要

We present the results of investigating a triad of precise laser gyroscopes with digital readout electronics that implements modern data processing methods. The readout electronics converts the initial signals of ring helium-neon lasers into samples of the angular rate in the real time mode, performs pseudorandom modulation of alternating mechanical dither, adjusts and stabilizes losing frequency, filters the output data series. In our experiments the gyros measured the projections of angular rate of the Earth rotation. We applied the method of Allan variance to analyze the time series of the angular rate samples. We also investigated contributions of several different factors into the value of laser gyro random error.