'Composite periodic signal' presentation slideshows

Chapter 3

Chapter 3. Signals. Physical layer. To be transmitted, data must be transformed to electromagnetic signals. Figure 3.1 Comparison of analog and digital signals. Figure 3.2 A sine wave. Figure 3.3 Amplitude. Figure 3.4 Period and frequency. Table 3.1 Units of periods and frequencies.

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Unit II

Unit II. Data and Signals: One of the important function of physical layer is to move the data in the form of electromagnetic signals from one host to another. The data in its original form (Text, Image, Audio, Video) is not suitable for transmission.

1.13k views • 95 slides

718 views • 71 slides

Lecturer: Tamanna Haque Nipa

Data Communication. Lecturer: Tamanna Haque Nipa. Data Communications and Networking, 4rd Edition, Behrouz A. Forouzan. Chapter 3: Data and Signals. ANALOG AND DIGITAL. To be transmitted, data must be transformed to electromagnetic signals.

446 views • 44 slides

Lecture 2 Physical Layer Ch 3: Data and Signals

Data Transmission and Computer Networks. Lecture 2 Physical Layer Ch 3: Data and Signals. Slides are modified from Behrouz A. Forouzan. 3-1 ANALOG AND DIGITAL. Data can be analog or digital Analog data refers to information that is continuous Analog data take on continuous values

1.59k views • 27 slides