'Communication satellites' diaporamas de présentation

The Physical Layer

The Physical Layer. Chapter 2.

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The physical layer

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The Physical Layer

The Physical Layer. Chapter 2. The Theoretical Basis for Data Communication. Fourier Analysis Bandwidth-Limited Signals Maximum Data Rate of a Channel. Bandwidth-Limited Signals. A binary signal and its root-mean-square Fourier amplitudes.

727 views • 62 slides

The Physical Layer

The Physical Layer. Chapter 2. The Theoretical Basis for Data Communication. Fourier Analysis Bandwidth-Limited Signals Maximum Data Rate of a Channel. Bandwidth-Limited Signals. A binary signal and its root-mean-square Fourier amplitudes.

745 views • 62 slides

Chapter 2. The Physical Layer

Chapter 2. The Physical Layer. Wen-Shyang Hwang KUAS EE. The Theoretical Basis for Data Communication. Fourier Analysis harmonics Bandwidth-Limited Signals Given a bit rate of b bps, the time required to send 8 bits 1 bit at time is 8/b sec, so the frequency of the first harmonic is b/8 Hz

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Computer Networks

Computer Networks. NYUS FCSIT Spring 2008 Igor TRAJKOVSKI, Ph.D. Associate Professor trajkovski@unys.edu.mk. The Physical Layer. Chapter 2. The Theoretical Basis for Data Communication. Fourier Analysis Bandwidth-Limited Signals Maximum Data Rate of a Channel. Bandwidth-Limited Signals.

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The Physical Layer

The Physical Layer. Chapter 2. The Theoretical Basis for Data Communication. Fourier Analysis Bandwidth-Limited Signals Maximum Data Rate of a Channel. Bandwidth-Limited Signals. A binary signal and its root-mean-square Fourier amplitudes.

614 views • 54 slides

Transmission Media

Transmission Media. Guided Transmission Data. Magnetic Media Twisted Pair Coaxial Cable Fiber Optics. Magnetic Media. Most common way to transport data from one computer to another is to write them onto Magnetic Tape or removable media. Example:

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The Physical Layer Part1

The Physical Layer Part1. The Theoretical Basis for Data Communication. Fourier Analysis Bandwidth-Limited Signals Maximum Data Rate of a Channel. Bandwidth-Limited Signals. A binary signal and its root-mean-square Fourier amplitudes.

516 views • 39 slides

WAVES

WAVES. 8 th Grade Pre-AP Science Notes. Key Terms:. Waves : A disturbance that transfers energy from place to place. Amplitude: the height of a wave; the distance from the middle of a transverse wave to the crest or trough. Key Terms:.

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Bellringer

Bellringer. What is the amount of energy a sound wave carries per second through a unit area called?. Using Space Science on Earth. Notes. The Challenges of Space. A vacuum is a place that has no matter. Most of space is a vacuum. Because there is no matter, there is no pressure.

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Lecture #11: Cellular Radio. Satellite Communications.

Lecture #11: Cellular Radio. Satellite Communications. C o n t e n t s Cellular Radio Evolution of wireless and mobile communications Cellular mobile systems Communication Satellites Geosynchronous satellites Low-orbit satellites. 2. 6. 12. 13. 17. Mobile Telecommunication Services.

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The Impact of Communication Technology

The Impact of Communication Technology . Part 1 Political and Social . Technology Assessment. To assess something means to evaluate it. When you study the effect of a new technological device, you are doing technology assessment.

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GLOBALIZATION

GLOBALIZATION . G L O B A L I Z A T I O N. Globalization describes a process of increasing interdependence or the building of networks between individuals, firms, countries or regions. EFFECTS of GLOBALIZATION. The global common market has a freedom of exchange of goods and capital.

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Quiz Show

Quiz Show. Use commas correctly. What is inertia?. Select the sentence where the comma was used correctly:. I visited las vegas , nevada last summer. I visited las vegas , Nevada last summer. I visited las vegas Nevada last summer. I visited Las Vegas , Nevada last summer.

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Cellular Networks: Past, Present, and Future

Cellular Networks: Past, Present, and Future. This article discusses the history, present state, and future of cellular radio networks. some examples of mobile communication systems currently in use are: Paging Communication Satellites Cellular Radio Networks Personal Handy Phone

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Satellite Orbits ???? ??

?????? 2004 ? 1 ?? 3 ? 11 ? ??? 1 ??. Satellite Orbits ???? ??. Launch Animation. NASA server. KNU Server: no sound but storable. Close to Earth (320~800km) ~27,000 km/h 90min period Space Shuttle Some Remote Sensing Satellites and weather satellites

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The Global Economy

The Global Economy . The United States and the World. Global Trade Affects Us All . True or False? In the United States it would be unusual to ride in a bus made in Japan? We not only live not just as Americans, but as part of the global economy

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Components of the System

TELECOMMUNICATIONS. Components of the System. Home Phone (Landline): Send/Receive Landline Network Signals through Telephone Wires. Cell Phone: Send/Receive Radio Wave Signals with Cell Tower in Area. Satellite Phone: Send/Receive Radio Wave Signals to/from Communication Satellites.

310 views • 9 slides