Engineering Signal Analysis: from Fourier to filtering: theory

Engineering Signal Analysis is an introductory textbook on the analysis of signals in time and frequency domain. It discusses how to characterize, model, analyze, interpret and operate on signals in time and frequency. In the first part of the book the basic theoretical concepts are introduced in continuous time, covering the Fourier Series and Fourier Transform. The second part introduces discrete-time signals, addressing sampling and finite signal duration, and their implications on spectral analysis. The third part elaborates on spectral estimation, covering the basic periodogram and more advanced methods. The fourth part concludes the book with an introduction to linear system theory, and addresses in particular signal filtering.