Patt 1 Lesson I Periodic Signals 1.1 Time-Domain Descriptions 1.2 Frequency- Domain Descriptions 1.3 Orthogonal Functions 1.4 The Fourier Series Lesson 2 Aperiodic Signals 2.1 Introduction 2.2 The Exponential Form of the Fourier Series 2.3 The Fourier Transform 2.4 The Laplace Transform Lesson 3 Sampled-Data Signals 3.1 Introduction 3.2 Mathematical Description Using the Dirac Function 3.3 Spectra of Sampled-Data Signals 3.4 The z- Transform 3.5 Discussion Lesson 4 Random Signals 4.1 Introduction 4.2 Elements of Probability Theory 4.3 Amplitude Distributions and Moments 4.4 The Autocorrelation and Power Spectral Density …… Part 2 Patt 3