nondeterminacy information 不确定性信息
System model is the foundation of Kalman filter. The nondeterminacy of system model brought on apriori data error, as the low precision and the diverge of the filter.
系统建模是卡尔曼滤波的基础，系统模型不准确带来的验前数据误差，使滤波器精度降低，可能造成发散。
The algorithm used here considers the nondeterminacy of data and hence can overcome the shortcomings of existing algorithms. It is automatic, direct and effective, and needs less running time.
这种算法不仅可以弥补以往算法的上述缺陷，还具有自动、直接、有效，且计算量也较小的优点。
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