440-4211/01 – Optical Atmospheric Communications (OAK)

Gurantor departmentDepartment of TelecommunicationsCredits4
Subject guarantorIng. Jan Vitásek, Ph.D.Subject version guarantorIng. Jan Vitásek, Ph.D.
Study levelundergraduate or graduateRequirementOptional
Year2Semestersummer
Study languageCzech
Year of introduction2010/2011Year of cancellation
Intended for the facultiesFEIIntended for study typesFollow-up Master
Instruction secured by
LoginNameTuitorTeacher giving lectures
VIT0028 Ing. Jan Vitásek, Ph.D.
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Credit and Examination 3+1
Combined Credit and Examination 2+6

Subject aims expressed by acquired skills and competences

Understand the basic principles of optical atmospheric communication and their differences in comparison to fiber optical communications. Learning outcomes are set so that the students are able to identify and apply tasks in the field of optoelectronics and fiberless commnucations.

Teaching methods

Lectures
Tutorials
Experimental work in labs

Summary

Subject deals with optical communications in free space. Attention is dedicated to directional optical connections and ordinary diffusion optical nets. Significant part content is orientated to IrDa transmission. Basic technologies will be described together with devices, properties of optical communications systems and influence of atmosphere on transmission signals.

Compulsory literature:

LAMBERT, S. G. a W. L. CASEY. Laser communications in space. Boston: Artech House, c1995 - xix, 390 s. ISBN 0-89006-722-8. RAMIREZ-INIGUEZ, R., S. M. IDRUS a Z. SUN. Optical wireless communications: IR for wireless connectivity. Boca Raton: CRC Press, c2008 - xxxi, 344 s. ISBN 978-0-8493-7209-4. HEMMATI, H. Deep space optical communications. Hoboken: Wiley, c2006. ISBN 0-470-04002-5.

Recommended literature:

ANDERSON, D. R., L. JOHNSON a F. G. BELL. Troubleshooting Optical fiber networks. Elsevier Academic Press, USA, 2004. ISBN 0-12-0586614. SALEH, B. E. A. a M. C. TEICH. Fundamentals of Photonics. New Yersey: Wiley and Sons, 2007. ISBN 978-0-471-35832-9. BURES, J. Guided Optics. Wieheim: Wiley and Sons, 2009. ISBN 978-3-527-407796-5.

Way of continuous check of knowledge in the course of semester

Two test during theoretical excercises.

E-learning

Další požadavky na studenta

The condition for the credit obtaining are handover of all reports from laboratory measurements and succesfully managing of two tests.

Prerequisities

Subject has no prerequisities.

Co-requisities

Subject has no co-requisities.

Subject syllabus:

1. Introduction - technology overview, system configuration, history of ir communication systems, optical fiberless channel, attenuation budget 2. Atmosphere as a transmission medium - atmosphere properties and its influence to transmission properties, attenuation effects in atmosphere, scintillation 3. Safety rules by atmospherical communications - influence of parasitic lights on transmission, influence of sunshine, multiray disoersion, characteristics of human eye, laser classes, holographic diffusers, comparison of LD and LED, specialities of outside communication systems 4. Introdustion of optical concetrators - elements of ray optics, fundamentals of energy optics, Fermat principle, polarisation of light 5. Optical concentrators - concentrator overview, demands on ir receivers, optical filters, ideal concentrator, fresnel lenses, hemispherical concentrators, parabolic concentrators, 6. Dielectrical concentrators based on total reflection, - characteristics, geometrical amplification, maximum of acceptance angle, concetrator comparison, another shapes of concentrators with total reflection 7. Optical transmitters for fiberless communications,- basics of transmitter design, optical demands to optical sources, types of optical modulators, driver circuits for optical transmitters, timing circuits, control of transmitting power 8. Optical receivers for fiberless communications - basics of receiver design, selection of detectors, receiver noises, BER and receiver sensitivity, BW of optical receiver, signal amplifiers, 9. Modulation, coding, multile usage of transmission media - analog, pulse and digital modulation, types of modulation and their sensitivity to noises of communication channel, access techniques to atmospherical channel 10. IrDA protocols - standards of fiberless transmissions, overview of IrDA standards, protocols for physical layer, IrLM protocol, IA3 protocol, Tiny T protocol 11. Introduction of Ir networks - network achitecture, specification of optical fiberless networks, Ad hoc networks, QoS of fiberless optical networks, future trends in optical atmospherical communications

Conditions for subject completion

Full-time form (validity from: 2010/2011 Summer semester, validity until: 2013/2014 Summer semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of points
Exercises evaluation and Examination Credit and Examination 100 (100) 51
        Exercises evaluation Credit 40 (40) 20
                LU 1 Laboratory work 5  0
                LU 2 Laboratory work 5  0
                Projekt Project 10  0
                Test Written test 20  0
        Examination Examination 60  11
Mandatory attendence parzicipation:

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Occurrence in study plans

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2015/2016 (N2647) Information and Communication Technology (2601T013) Telecommunication Technology P Czech Ostrava 2 Optional study plan
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2015/2016 (N2647) Information and Communication Technology (2612T059) Mobile Technology K Czech Ostrava 2 Optional study plan
2014/2015 (N2647) Information and Communication Technology (2601T013) Telecommunication Technology P Czech Ostrava 2 Optional study plan
2014/2015 (N2647) Information and Communication Technology (2601T013) Telecommunication Technology K Czech Ostrava 2 Optional study plan
2013/2014 (N2647) Information and Communication Technology (2601T013) Telecommunication Technology P Czech Ostrava 2 Optional study plan
2013/2014 (N2647) Information and Communication Technology (2601T013) Telecommunication Technology K Czech Ostrava 2 Optional study plan
2012/2013 (N2647) Information and Communication Technology (2601T013) Telecommunication Technology P Czech Ostrava 2 Optional study plan
2012/2013 (N2647) Information and Communication Technology (2601T013) Telecommunication Technology K Czech Ostrava 2 Optional study plan
2011/2012 (N2647) Information and Communication Technology (2601T013) Telecommunication Technology P Czech Ostrava 2 Optional study plan
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2010/2011 (N2647) Information and Communication Technology (2601T013) Telecommunication Technology P Czech Ostrava 2 Optional study plan
2010/2011 (N2647) Information and Communication Technology (2601T013) Telecommunication Technology K Czech Ostrava 2 Optional study plan

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