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In this paper we analyze the frequency correction caused by a finite beam width in an optical gyro.
本文分析了光陀螺中由于有限光束宽度对拍频频率的修正因子。
One method is phase difference correction of partly FFT; the other is FFT frequency correction with quadratic interpolation.
一是利用分段FFT的相位差修正算法，二是基于二次内插的频率FF T校正法。
It adopts auto adaptive step to track the frequency offset, so that it can shorten the AFC (Automatic frequency correction) tracking period and improve frequency precision.
新算法可以自适应地调节本振频率跟踪载波频率的阶距，从而很好地缩短了AFC的跟踪时间和改进了频率校正的精度。
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