随着广义周期系统应用领域的不断扩大，对广义周期系统的理论研究也在不断深入。
With the enlargement of the singular systems application, the study on periodic descriptor systems theory is being probed further progressively.
苏晓明，张庆灵，广义周期时变系统，科学出版社，2006。
Xiaoming SU, Qingling Zhang, Periodic Time Varying Descriptor Systems, Science Press, 2006.
研究了广义周期时变系统的允许性问题。
This study concerns admissibility problems for periodically time-varying descriptor systems.
最后，引入了广义周期时变系统二次稳定的概念，并讨论了二次稳定性与鲁棒稳定性之间的关系。
Finally, the definition of quadratic stability is introduced, and the relation between quadratic stability and robust stability of the systems is discussed.
首次对广义离散系统的周期解的存在性进行研究，给出了广义离散系统周期解存在的判据。
The existence of periodic solution of singular discrete system is firstly stud - ied and theorem which periodic solutions of singular discrete system exist is given.
对半相依回归线性系统，我们周期地使用迭加信息的方法，得出了回归系数广义协方差改进估计。
In this paper we repeatedly draw information from the seemingly unrelated regression equations and introduce a method that can be used to improve the covariance improvement estimate (CIE).
对半相依回归线性系统，我们周期地使用迭加信息的方法，得出了回归系数广义协方差改进估计。
In this paper we repeatedly draw information from the seemingly unrelated regression equations and introduce a method that can be used to improve the covariance improvement estimate (CIE).
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