| 时分复用三轴光纤陀螺信噪比分析 |
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| 引用本文： | 伊小素.时分复用三轴光纤陀螺信噪比分析[J].光电子．激光,2010(2):178-182. |
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| 作者姓名： | 伊小素 |
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| 作者单位： | 北京航空航天大学仪器科学与光电工程学院; |
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| 基金项目： | 国家“863”计划资助项目(2006AA811109) |
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| 摘 要： | 基于信号处理和随机过程理论,研究了基于时分复用(TDM)技术的三轴光纤陀螺(FOG)的整体精度,利用差分方程建立了TDM闭环处理中相位差的衰减模型。将单轴总体噪声分为稳态噪声和调整噪声两部分,推算出了单轴信噪比(SNR)的计算公式,并对各影响参数进行了仿真分析,提出了相应的改进建议。设计了FOG实验,验证了模型分析的合理性及正确性。
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| 关 键 词： | 光纤陀螺(FOG) 衰减模型 信噪比(SNR) 时分复用(TDM) |
SNR analysis of time-division multiplexing fiber optic gyroscope based on attenuation model |
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| YI Xiao-su.SNR analysis of time-division multiplexing fiber optic gyroscope based on attenuation model[J].Journal of Optoelectronics·laser,2010(2):178-182. |
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| Authors: | YI Xiao-su |
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| Affiliation: | School of Instrument Science and Opto-electronics Engineering;Beijing University of Aeronautics and Astronautics;Beijing 100191;China |
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| Abstract: | Based on the theory of signal processing and random process,the total precision of the time-division multiplexing(TDM)of three-axis fiber optic gyroscope(FOG) is analyzed.The attenuation model of detection phase error in closed loop process is made by using difference equations in the TDM system.By dividing the whole noise of one axis into two parts:steady noise and adjusting noise,a calculation formula of reduced SNR is derived.Related parameters are simulated according to the formula calculations.Some wor... |
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| Keywords: | Optical fiber gyro time-division multiplexing(TDM) SNR attenuation model |
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