Frequency characteristics calculation of the digital closed loop FOG was conducted based on error analysis between the transfer function and the model.
分析传递函数与FOG模型的误差，得出数字闭环FOG频率特性的计算方法。
2
A cost function is presented, and by applying Gaussian-Newton type recursive prediction error based method, a stable and efficient online frequency estimation algorithm is derived.
A closed-form solution for filter coefficients is obtained by minimizing the frequency-domain squared-errorfunction and revealing some properties of the matrices related to the design problem.