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外推式算法是跟踪算法中计算量最少,表达最简单而直观的一类算法。本文对此算法中的两点、三点外推算法的传递函数以及它的动态、稳态性能作出较详尽的分析,并举例说明其设计和应用中的有关问题。
Extrapolation algorithm is a kind of algorithm which has the least amount of computation and the simplest expression in tracking algorithm. In this paper, the transfer function of two-point and three-point extrapolation algorithm and its dynamic and steady-state performance in this algorithm are analyzed in detail, and some problems in the design and application are illustrated.