In this paper, measurement variance of the system is obtained with second order polynomial data fitling based on actualvariance data of wheel speed signals.
在假定系统方程和过程方差的情况下，轮速信号的处理采用了卡尔曼滤波器的结构。
2
When management has an understanding of predicted versus actual volatility, it is able to assess variance from plan and take steps to rein in projects that are heading out of control.
当管理层了解了预计的对实际的易变率时，就能够评估与计划的差异，并且设法控制正要脱离控制的项目。
3
If you are not preparing monthly variance reports (how much your actual expenses and income differ from what you projected) you should.