Modelling of time-varying discrete-time systems

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Modelling of time-varying discrete-time systems

机译：时变离散时间系统的建模

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A theory to analyse linear time-varying (LTV) discrete-time systems from the point of digital signal processing of view is established here. The LTV discrete-time system is changing with time slowly in comparison with the sampling frequency of the input signal is supposed. Three models were set up to simulate and analyse the LTV system. Models 1 and 2 can be used to design and analyse the LTV system, while the filter bank representation relates the LTV system with the time-varying filter bank. Based on the established models, the input-output relationship of a time-varying system in the frequency-domain was analysed in detail.

机译：本文建立了一种从数字信号处理的角度分析线性时变（LTV）离散时间系统的理论。与假定的输入信号的采样频率相比，LTV离散时间系统随时间缓慢变化。建立了三个模型来模拟和分析LTV系统。模型1和模型2可用于设计和分析LTV系统，而滤波器组表示则将LTV系统与时变滤波器组相关联。在此基础上，详细分析了时变系统在频域的输入输出关系。

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《Signal Processing, IET》 |2011年第1期|p.104-112|共9页
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School of Communication Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, People's Republic of China;

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Modelling of time-varying discrete-time systems

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