'Carrier frequency' diaporamas de présentation

OMA000001 GSM Fundamentals

OMA000001 GSM Fundamentals. ISSUE 4.0. Objectives. Upon completion of this course, you will be able to: Grasp basic idea of GSM system such as frequency spectrum, frequency reuse etc. Grasp the structure of the GSM system and the protocol used. Grasp certain numbers that refer to BSS

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Chapter 7

Chapter 7. Radio Transmitters. Topics Covered in Chapter 7. 7-1 : Transmitter Fundamentals 7-2 : Carrier Generators 7-3 : Power Amplifiers 7-4 : Impedance-Matching Networks 7-5 : Typical Transmitter Circuits. 7-1 : Transmitter Fundamentals.

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Spread Spectrum Techniques

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Radar Imaging with Compressed Sensing

Radar Imaging with Compressed Sensing. Yang Lu April 2014 Imperial College London. Outline. Introduction to Synthetic Aperture Radar (SAR) Background of Compressed Sensing Reconstruct Radar Image by CS methods. Introduction to SAR . Important elements of SAR

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Introduction to OFDM

Introduction to OFDM. Fire Tom Wada Professor, Information Engineering, Univ. of the Ryukyus Chief Scientist at Magna Design Net, Inc wada@ie.u-ryukyu.ac.jp http://www.ie.u-ryukyu.ac.jp/~wada/. What is OFDM?. OFDM =Orthogonal Frequency Division Multiplexing

1.12k views • 39 slides

Modulation formats for digital fiber transmission

Eric Tell 050329 . Modulation formats for digital fiber transmission. Outline. Fiber performance limitations WDM Optical vs. radio communication Optical modulators Modulation formats Amplitude shift keying Duo-binary signalling Optical single sideband signalling

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Tay -Sachs disease

Tay -Sachs disease. S. F. Khatami Neonatologist. Ganglioside is a molecule composed of a glycosphingolipid ( ceramide and oligosaccharide) with one or more sialic acids (e.g . n- acetylneuraminic acid , NANA) linked on the sugar chain. Tay -Sachs disease. Gangliosidoses.

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Chapter 19 - Simulators and Emulators for Different Abstraction Layers of UHF RFID Systems

Chapter 19 - Simulators and Emulators for Different Abstraction Layers of UHF RFID Systems. Figure 19.1 Abstract overview of simulation/emulation cases. Figure 19.2 Tag Classes: UHF RFID Tags. Figure 19.3 Test Components. (a) Conformance Test Components. (b) Interoperability Test Components.

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GPS Fundamentals

GPS Fundamentals. Jie Liu Microsoft Research Redmond, WA 98052 Jie.liu@microsoft.com. Mobile Location Sensing Tutorial at MobiSys 2013. GPS Basics. 32 Satellites (SVs) Ground management stations Time synced to nanosecond level Estimate trajectories for each SV

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William Stallings Data and Computer Communications

William Stallings Data and Computer Communications . Chapter 6 The Data Communications Interface. Asynchronous and Synchronous Transmission. Timing problems require a mechanism to synchronize the transmitter and receiver Two solutions Asynchronous Synchronous. Asynchronous.

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Wireless Multi-touch Tablet

Wireless Multi-touch Tablet. Peter Bankwitz Chris Glab Gierad Laput Malek Musleh. Advisor: Professor Xiang. Project Objectives. Design Wireless Human Interface Device Improve Presentation Method & Desktop Interaction Provide greater user freedom Wireless User Tools

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Retransmission ? Repeat: Simple Retransmission Permutation Can Resolve Overlapping Channel Collisions

Li (Erran) Li Bell Labs, Alcatel-Lucent Joint work with: Junliang Liu(MSR,Beijing), Kun Tan(MSR, Beijing), Harish Viswanathan (Bell Labs), Yang Richard Yang (Yale). Retransmission ? Repeat: Simple Retransmission Permutation Can Resolve Overlapping Channel Collisions. Talk Outline.

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Impact of Interference Model on Capacity in CDMA Cellular Networks

Impact of Interference Model on Capacity in CDMA Cellular Networks. Robert Akl, D.Sc. Asad Parvez University of North Texas. Outline. Introduction to CDMA networks Average interference model Actual interference model Optimized capacity 2D Gaussian user model Conclusions. FDMA. TDMA.

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Mobile Communications Chapter 2: Wireless Transmission

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Chapter 4. Angle Modulation

Chapter 4. Angle Modulation. 4.7 Generation of FM Waves. Direct Method A sinusoidal oscillator, with one of the reactive elements in the tank circuit of the oscillator being directly controllable by the message signal

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COMMUNICATION SYSTEM EECB353 Chapter 3(II) ANGLE MODULATION

COMMUNICATION SYSTEM EECB353 Chapter 3(II) ANGLE MODULATION. Dept of Electrical Engineering Universiti Tenaga Nasional. Frequency Analysis of Angle-Modulated Waves. The output of angle-modulated signal of

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GT-Bionics Lab

Connecting the Inside and Outside Worlds: Wideband Communication Across the Skin. Maysam Ghovanloo, Ph.D. GT-Bionics Lab. School of Electrical and Computer Engineering. Questions.

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Sound in Matlab & Cogent

Sound in Matlab & Cogent. Tobias Overath. Sound. sound = pressure wave. Overview. play sound in Matlab/Cogent create a sound things you can do with sound: louder/quieter higher/lower combine sounds compose & play a melody. Playing a sound in Matlab. load wavfile

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Announcements: HW posted, due Fri noon (revised deadline for all HWs) Review of Last Lecture Narrowband Fading Model In-Phase and Quad Signal Components Crosscorrelation of RX Signal in NB Fading Correlation and PSD in uniform scattering Signal Envelope Distributions.

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Wiring of the Electric Motor

Wiring of the Electric Motor. By Irri-Gator Products (Pty) Ltd. Star & Delta Connections. Star connections draw less power than Delta but have low Torque Delta connections have more Torque and draw more Power

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