From engineering practice of multi-index estimation, this paper determines grey weight coefficient of estimation index according to grey statisticalmatrix.
本文从工程多指标评估实用出发，根据灰色统计矩阵确定表示评估指标重要程度的灰色权系数。
2
By statistical analysis, the relationship between the matrix hardness of the high pearlite-containing nodular iron and its nodularity and pearlite content was investigated.
通过统计分析，研究了高珠光体含量球铁的基体硬度与球化率和珠光体含量的关系。
3
Based on the algorithm of maneuvering acceleration current statistical model adaptive filtering, the adaptive kalman filtering algorithm based on QR matrix decomposition is presented in this paper.