## 切比雪夫多项式及零点插值的matlab实现

Chebyshev polynomial and zero point interpolation of matlab
Abstract： In this paper, It is based on a review of the concept of chebyshev polynomial, definition and theorem of deduction, it is concluded that the continuous function approximation polynomials, according to the nature of the analysis on the chebyshev polynomial in the application of matlab. For filter problem is now a large number of research, research discussed cut than snow, filter and general filter, as well as the similarities and differences of the base of our problems are most often encountered in processing the operation of the filter, and the choice of the most common use of polynomial approximation in the design of filter, and by the corresponding data of zero point interpolation, we all can be realized in matlab.
Key Words：Chebyshev polynomial ;Digital filter ;matlab

1．切比雪夫多项式的基本概念    3
1.1 切比雪夫多项式    3
1.2 切比雪夫多项式的性质    3
1.3  切比雪夫定理    4
2．切比雪夫多项式在实际中的应用    5 源￥自%六^^维*论-文+网=www.lwfree.cn
2.1 切比雪夫插值法在热敏电阻中的应用    5
2.2 切比雪夫插值法在数字滤波器中的应用    6
3．切比雪夫多项式零点插值在matlab中的实现    8
3.1 切比雪夫多项式零点插值    8
3.2零点插值在matlab中的实现    9
4．总结    11

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