PPT-Chapter # 3 Data and Signals

Introduction One of the major functions of physical layer is to move data in the form of electromagnetic signals across a transmission medium Thus the data must be transformed to electromagnetic signals to be transmitted. 0 Introduction A periodic signal can be represented as linear combination of complex exponentials which are harmonically related An aperiodic signal can be represented as linear combination of complex expone ntials which are infinitesimally close in : Brain-Mobile Phone Interface using a Wireless EEG Headset. Andrew T. Campbell, . Tanzeem. . Choudhury. , . Shaohan. . Hu. , Hong Lu,. Matthew K. . Mukerjee. !, . Mashfiqui. Rabbi, and Rajeev D. S. . Molecular Structure. by Nuclear Magnetic Resonance (NMR). 2. Nuclear Magnetic Resonance Spectroscopy exploits a property called Nuclear Spin. Any atomic nucleus that has an odd mass, an odd atomic number, or both is a nucleus . How The Internet Works. Lecture 1. Sadi Evren SEKER. Is the Internet Different?. History: many types of communications. Course Objective. Explore the technologies that make up the modern internet, and how they affect you. Dr. Leonid Perlovsky. Northeastern . University, lperl@rcn.com. Tutorial, IJCNN 2015. 12 July 2015. OUTLINE. The fundamental principles . of the mind-brain . The mind is more powerful than standard algorithms. How we Run Exchange Online. Perry Clarke, CVP, Outlook/Exchange Engineering . Vivek Sharma, Director of PM, Office 365 . BRK3186. We’re engineers, not marketing. What Marketing likes to show off… . Know the basics of physical layer design, constraints, solutions. Data communication theoretical basis. Analog vs digital signal and transmission. Reading. Chapter 2. 2. Physical Layer – How bits are sent. 1. Event-driven programming . Event-driven programming is a programming paradigm in which the flow of the program is determined by. sensor outputs,. user actions (mouse clicks, key presses), or. messages from other programs or threads.. 1. Event-driven programming . Event-driven programming is a programming paradigm in which the flow of the program is determined by. sensor outputs,. user actions (mouse clicks, key presses), or. messages from other programs or threads.. Data and Signals. Introduction. Data are entities that convey meaning. Signals are the electric or electromagnetic encoding of data. Computer networks and data/voice communication systems transmit signals. Introduction. Under the simplest conditions, a medium can carry only one signal at any moment in time. For multiple signals to share one medium, the medium must somehow be divided, giving each signal a portion of the total bandwidth.. Data and Signals. Introduction. Data are entities that convey meaning. Signals are the electric or electromagnetic encoding of data. Computer networks and data/voice communication systems transmit signals. slides are modified from . Behrouz A. Forouzan. 2. Chapter 3: . Data and Signals. 3.1 Analog and Digital. 3.2 . Periodic. . Analog Signals. 3.3 Digital Signals. 3.4 Transmission Impairment. 3.5 Data-rate Limits. BY . Mr.Sukchatri Prasomsuk. Contents :. 3.1 Analog and Digital. 3.2 Periodic and Aperiodic Signals. 3.3 Analog Signals. 3.4 Time and Frequency Domains. 3.5 Composite Signals. 3.6 Digital Signals.