The key problems and solutions of the IFOG s realization have been involved in this paper.
介绍了干涉型光纤陀螺实现中的几个关键问题和相应的解决方法。
The drift performance of IFOG must be improved in order to apply IFOG to inertial navigation.
为了把IFOG应用于惯性导航领域，必须改善其漂移特性。
Furthermore, a random drift error model for IFOG is built by the method of time series analysis.
此外，采用时间序列分析方法，建立了IFOG的随机漂移误差模型。
The scale factor linearity and stability of the IFOG must be improved in order to apply IFOG to high-precision case.
为了应用于高精度领域，必须提高光纤陀螺标度因数的线性度和稳定性。
After compensating actual measured data, the result shows that adaptive filter can suppress the IFOG drift when IFOG output model is unknown.
对实测数据补偿的结果证明，在不知道IFOG输出模型的情况下，自适应滤波可以对漂移起到较好的补偿效果。
On the other side, a transverse adaptive filter based on the LMS was designed according to the time-varying characteristic of IFOG output signals.
另一方面针对IFOG输出信号具有时变特性的特点，提出了自适应滤波方案，并设计了基于LMS算法的自适应横向滤波器。
The interferometer fiber-optic gyro (IFOG) has own unique advantage so that it attracted the worldwide interesting of many research organizations.
干涉式光纤陀螺（IFOG）具有许多独特的优点，由此引起了世界上众多研究机构的重视。
Comparing to the depolarization technique, the effect of temperature change and vibration will be avoided, hence, the whole performance of IFOG can be promoted.
与应用较为广泛的混偏技术相比，可以避免温度变化、振动等原因对光纤陀螺系统精度的影响，从而提高光纤陀螺的整体性能。
Until 90s of 20 century, people found the high precision potentials of IFOG and started the research and development of precision-grade FOG and its system technology.
到20世纪90年代中期，人们看到了干涉型光纤陀螺仪的高精度发展潜力，开始了精密级光纤陀螺仪及其系统技术的研究工作。
In order to reduce errors in interferometric fiber optic gyroscopes (IFOG) to improve its performance, evaluation should be the first step, which can find out some error sources.
为了减少干涉型光纤陀螺(IFOG)的误差并提高其精度，需要首先对陀螺仪进行性能评估，了解内部影响其性能的各种误差源。
After building closed-loop model, we can analyze and evaluate the performances of IFOG in theory, and improve it, which provide evidences for designing system and choosing optical components.
闭环模型建立后，能从理论上分析、评价、改善IFOG性能，为系统设计和选择光学器件提供了依据。
Identifying and compensating on-line of nonlinear temperature drift about IFOG can be realized by the identification method, and the measurement precision of IFOG can be improved effectively.
采用该辨识方法可实现光纤陀螺非线性温度漂移的在线辨识和补偿，有效地提高光纤陀螺的测量精度。
Identifying and compensating on-line of nonlinear temperature drift about IFOG can be realized by the identification method, and the measurement precision of IFOG can be improved effectively.
采用该辨识方法可实现光纤陀螺非线性温度漂移的在线辨识和补偿，有效地提高光纤陀螺的测量精度。
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