Preface Chapter 1Introduction 1.1Overview of signals and systems 1.1.1What is a signal? 1.1.2What is a system? 1.2Description and classification of signals 1.2.1Continuous-time signals and discrete-time signals 1.2.2Energy signals and power signals 1.2.3Periodic signals and non-periodic signals 1.2.4Deterministic signals and random signals 1.2.5Elementary signals 1.3Description of Systems 1.3.1Elementary systems 1.3.2System modelling 1.4Properties of systems 1.4.1Memoryless and with memory 1.4.2Causality 1.4.3Invertibility 1.4.4Stability 1.4.5Time-invariance 1.4.6Linearity 1.5Summary 1.6Problems ……
