An equivalent characterization of Haar condition is given in this paper, which guarantees the existence and uniqueness of bestuniformapproximation.
给出了保证最佳一致逼近元唯一存在的哈尔条件的等价定义。
2
After investigating into the design of classical FIR digital filter, a method of FIR filter design based on proximate bestuniformapproximation is proposed.
This paper presents a method to evaluate cylindricity errors. It USES bestuniformapproximation to process the sample data measured continually and dynamically along a cylindrical spiral.