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Chapter 19

z-Transform

Z 变换的定义
Z 变换的定义
The z-transform is a fundamental tool used in analyzing discrete-time systems,  serving as the discrete-time counterpart of the Laplace transform. It ...
收敛区域
收敛区域
The z-transform converges only for certain values of z. This range of values is known as the Region of Convergence (ROC), which is essential for ...
Z 变换的属性
Z 变换的属性
Certain properties provide a solid foundation for analyzing discrete-time systems using the Z-transform. Considering two discrete-time signals, the ...
Z 变换的性质 II
Z 变换的性质 II
The property of Accumulation is derived by expressing the accumulated sum and applying the time-shifting property to solve for the Z-transform. It states ...
通过部分分式展开实现逆 Z 变换
通过部分分式展开实现逆 Z 变换
The inverse Z-transform is an essential tool used for converting a function from its frequency domain representation back to the time domain. Consider the ...
使用 Z 变换求解差分方程
使用 Z 变换求解差分方程
Most practical discrete-time systems can be represented by linear difference equations, making the z-transform a particularly useful tool. Knowing the ...
DFT 与 Z 变换的关系
DFT 与 Z 变换的关系
The Discrete Fourier Transform (DFT) analyzes the frequency content of discrete-time signals. It maps the N-sampled discrete time-domain sequence to its ...
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