数字闭环光纤陀螺的调制串扰误差

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2007, Vol. 28 ›› Issue (5): 1200-1205.

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Electrical Crosstalk of Modulation Signal in Digital Closedloop FOG

Jin Jing,Zhang Chunxi,Song Ningfang

School of Instrument Science and Opto-electronics Engineering, Beijing University ofAeronautics and Astronautics

Received:2006-10-18 Revised:2007-06-04 Online:2007-10-15 Published:2007-10-15
Contact: Jin Jing

Abstract

Abstract:

The electrical crosstalk error of modulation signal in a digital closedloop fiber optic gyroscope (FOG) is proposed by analyzing sawtooth modulation signal, dead band, periodic noise and bias drift in a low rotational speed. The electrical crosstalk between phase modulator and photodetector and modulation error from the modulation signal are the main interference sources causing electrical crosstalk error of modulation signal.

Key words: fiber , optic , gyroscope, , signal , detection, , dead , band, , crosstalk, , nonlinearity

CLC Number:

V241.5+9

Jin Jing;Zhang Chunxi;Song Ningfang. Electrical Crosstalk of Modulation Signal in Digital Closedloop FOG[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2007, 28(5): 1200-1205.

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Electrical Crosstalk of Modulation Signal in Digital Closedloop FOG

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