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１前言在工程应用中，相当一部分工业过程可由带有实零极点及时滞的传递函数描述，一些典型的控制算法也是基于系统的实零极点进行设计的［１—３］．虽然我们可通过对分子、分母多项式构成的传递函数进行因式分解间接求得过程的零极点，但在实时辨识中却很难做到求得的零...
1 Introduction In engineering application, a considerable part of the industrial process can be described by the transfer function with real zero-pole and time-delay. Some typical control algorithms are also designed based on the real-zero pole of the system [1-3]. Although we can find the zero poles of the process indirectly through the factorization of the transfer function of the numerator and denominator polynomial, we can hardly find the zero in the real-time identification.