The technology of temperature compensation and cascade current mirror was used, and the output of two stage amplifier was used for the bias of itself.
电路运用带隙温度补偿技术，采用共源共栅电流镜，两级运放输出用于自身偏置电路。
For the ratio estimate in two-stage sampling, the bias and mean square errors(MES) of the estimater value have been obtained, and the estimater value of the MSE has been given.
给出了二阶比估计量的偏差、估计量的均方误差以及均方误差的估计。
The two-stage Kalman filter is excellent than standard Kalman filter in the presence of unknown random bias.
当动力学模型存在未知的随机系统偏差时，两阶段卡尔曼滤波要优于标准卡尔曼滤波。
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