'Attenuation' diaporamas de présentation

Introduction to Optical Fibre Principles

Introduction to Optical Fibre Principles. Wavelength and Spectra. Wavelength: Light can be characterised in terms of its wavelength Analogous to the frequency of a radio signal The wavelength of light is expressed in microns or nanometers

1.08k views • 65 slides

Wireless Networking Radio Frequency Fundamentals and RF Math Module-02

Wireless Networking Radio Frequency Fundamentals and RF Math Module-02. Jerry Bernardini Community College of Rhode Island . Presentation Reference Material. The California Regional Consortium for Engineering Advances in Technological Education (CREATE) project

1.11k views • 63 slides

Analog Network Coding

Analog Network Coding. Sachin Katti Shyamnath Gollakota and Dina Katabi. Current Wireless. C. Router. Current Wireless. C. Router. Traditional Routing requires 4 time slots. Current Wireless. C. Router. Traditional Routing requires 4 time slots.

877 views • 62 slides

Network+ Guide to Networks 5 th Edition

Network+ Guide to Networks 5 th Edition. Chapter 8 Wireless Networking. Objectives. Explain how nodes exchange wireless signals Identify potential obstacles to successful wireless transmission and their repercussions, such as interference and reflection

855 views • 59 slides

842 views • 48 slides

The Wireless Channel

870 views • 47 slides

Chapter 6: Errors, Error Detection, and Error Control

Chapter 6: Errors, Error Detection, and Error Control. Objectives. After reading this chapter, you should be able to: Identify the different types of noise commonly found in computer networks

1.21k views • 44 slides

Transmission Line Fundamentals

Transmission Line Fundamentals. Southern Methodist University EETS8320 Fall 2005 Session 5 Slides only. (No notes.). Major Transmission Facts 1. Electromagnetic waves flow via the non-conductive space in or around wire/cable conductors, and not via the metal conductor itself.

931 views • 43 slides

IE 419/519 Wireless Networks

IE 419/519 Wireless Networks. Lecture Notes #5 Antennas and Propagation. Introduction. An antenna is a transducer that converts radio frequency electric current to electromagnetic waves that are radiated into space

510 views • 37 slides

ECSE-4962 Introduction to Subsurface Sensing and Imaging Systems

ECSE-4962 Introduction to Subsurface Sensing and Imaging Systems. Lecture 18: Nuclear Medicine/PET Kai Thomenius 1 & Badri Roysam 2 1 Chief Technologist, Imaging Technologies, General Electric Global Research Center 2 Professor, Rensselaer Polytechnic Institute.

625 views • 34 slides

Attenuation of Diffracted Multiples

Attenuation of Diffracted Multiples. Gabriel Alvarez Biondo Biondi Antoine Guitton. Stanford University. Goal. Introduce a method to attenuate diffracted multiples on 2D data, based on an apex-shifted Radon transform.

392 views • 32 slides

Digital Baseband Converter

Digital Baseband Converter. Ying Xiang Xiuzhong Zhang Shanghai Astronomical Observatory China. Background. Analog BBC ?Base Band Converter ? 1. In VLBI data acquisition terminal, receiver bands are sent through the IF distributors to the base band converter.

529 views • 27 slides

Single Photon Interference

559 views • 26 slides

Understanding Networks II

Understanding Networks II. Objectives. Compare client and network operating systems Learn about local area network technologies, including Ethernet, Token Ring, FDDI, and wireless Use the OSI model to understand networking Learn how network computers and servers are addressed.

456 views • 18 slides

Rain Detection & Attenuation for Remote sensing; & auxiliary sensors

343 views • 18 slides

Lecture 2

Lecture 2. Most basic facts from Electricity needed for understanding telecommunications Local transmission lines in the telephone system Decibels Signals and Noise Mathematical facts. Resistors are components that oppose the flow of current

278 views • 18 slides

Layout of the Synchronisation System for the VUV-FEL

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Impact to the Radio Astronomy by the Interference caused by the Solar Power Satellite Systems

Impact to the Radio Astronomy by the Interference caused by the Solar Power Satellite Systems . Masatoshi Ohishi NAOJ. SSPS. Power Generation in Space (GSO) Power transmission via microwave beam Rectenna on earth ground. Pros and Cons. Can generate 24/24 No CO 2 emissions Economic

298 views • 15 slides

Cloud liquid water and ice content by multi-wavelength radar Nicolas Gaussiat Henri Sauvageot

Cloud liquid water and ice content by multi-wavelength radar Nicolas Gaussiat Henri Sauvageot Anthony J. Illingworth. Dual-Wavelength measurements. For a dual-wavelength pair ( Long, Short) :. DWR is due to (1) differential attenuation , (2) Mie scattering :.

228 views • 11 slides

Fig. 1-2: Digital transmission hierarchy

Fig. 1-2: Digital transmission hierarchy. Fig. 1-3: Operating ranges of components. Fig. 1-5: Major elements of an optical fiber link. Fig. 1-6: Optical fiber cable installations. Fig. 1-7: History of attenuation. Fig. 1-8: Optical multiplexing.

310 views • 6 slides