The simulation calculation of radar systematic error shows that the results are satisfactory and better than those of principalcomponentestimate.
干涉仪雷达系统性误差的模拟计算表明：效果良好，优于主成分估计。
2
Finally, we obtained three robust biased model fitting methods which were called as robust principalcomponentestimate, robust ridge estimate and robust root-root estimate respectively.
三种方法分别是稳健主成分估计、稳健岭估计和稳健根方估计。
3
This paper considers the classification compression principalcomponentestimate of regression coefficient in growth curve model and proves that it is superior to least squares estimate.