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无线发射机识别的研究中存在一种微小差别ARMA系统的分类问题,该问题把发射机基带到接收机基带部分建模为一个ARMA系统,由相同标称值构成的同一系列的无线发射机对应相同结构、零点极点有细微差别的ARMA系统。本文研究了ARMA系统间零极点差别与分子、分母多项式系数差别之间的关系,提出了采用分子或分母多项式的第二个系数构造特征矢量,从而增大微小差别ARMA系统的类间距离的新方法,给出了一个仿真实例。本文对后续的识别研究及相关的通信信道识别研究具有参考价值。
There is a slight difference in the classification of ARMA systems in the study of wireless transmitter identification. This problem models the base band of the transmitter to the baseband of the receiver as an ARMA system. The same series of wireless transmitters of the same nominal value correspond to The same structure, there are nuances of zero pole ARMA system. In this paper, we study the relationship between the pole-zero difference between ARMA systems and the coefficients of the numerator and the denominator polynomials. We propose to construct the eigenvectors by using the second coefficient of the numerator or denominator polynomial, so as to increase the distance between the classes of the ARMA system Method, gives a simulation example. This article has reference value for the follow-up identification research and related communication channel identification research.