In this chapter, we go back to the study of discrete-time signals, this time focusing on the frequency domain. We will see that periodic discrete-time signals can be expanded in a finite Fourier sum ...

we notice that such a characterization in the frequency domain depends on the continuous variable ?. This implies that the Fourier transform, as it is, is not suitable for the processing of ...

Comprehensive introduction to analysis of continuous and discrete-time signals and systems. Linear time-invariant systems, convolution; Fourier series representations of periodic signals; Continuous ...

A key algorithm that quietly empowers and simplifies our electronics is the Fourier transform, which turns the graph of a signal varying in time into a graph that describes it in terms of its ...