Audio beam system : projecting sound in laser precision

A communication system is designed to transmit and receive information. The information to be sent is generally superimposed by modulation onto an electromagnetic wave called the carrier. It is then transmitted to a receiver where the information is recovered by demodulation. In this project, laser...

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Main Author: Chan, Chun Yan.
Other Authors: Gan Woon Seng
Format: Final Year Project
Language:English
Published: 2010
Subjects:
Online Access:http://hdl.handle.net/10356/40770
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-407702023-07-07T16:13:34Z Audio beam system : projecting sound in laser precision Chan, Chun Yan. Gan Woon Seng School of Electrical and Electronic Engineering Centre for Signal Processing DRNTU::Engineering::Electrical and electronic engineering::Electronic systems A communication system is designed to transmit and receive information. The information to be sent is generally superimposed by modulation onto an electromagnetic wave called the carrier. It is then transmitted to a receiver where the information is recovered by demodulation. In this project, laser communication system will be implemented by projecting sound in laser precision to allow sound to be transmitted in a point-to-point manner over free space. The transmitter will introduce frequency modulation technique known as slope modulation while the receiver uses slope detection to demodulate. Frequency modulation is being used as variations in frequency causing its resilience to signal level variations. FM modulation has a higher signal to noise ratio making it suitable for high quality broadcast transmissions. Hardware circuitry for both transmitter and receiver will be designed and implemented, together with a laser points to perform point-like communication. Multiple transmitters and receivers can be built to reproduce a truly surround illusion of the source environment. Through this project a cheap and efficient way to transmit audio signal over free space will be highlighted. Bachelor of Engineering 2010-06-21T08:06:11Z 2010-06-21T08:06:11Z 2010 2010 Final Year Project (FYP) http://hdl.handle.net/10356/40770 en Nanyang Technological University 56 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Electrical and electronic engineering::Electronic systems
spellingShingle DRNTU::Engineering::Electrical and electronic engineering::Electronic systems
Chan, Chun Yan.
Audio beam system : projecting sound in laser precision
description A communication system is designed to transmit and receive information. The information to be sent is generally superimposed by modulation onto an electromagnetic wave called the carrier. It is then transmitted to a receiver where the information is recovered by demodulation. In this project, laser communication system will be implemented by projecting sound in laser precision to allow sound to be transmitted in a point-to-point manner over free space. The transmitter will introduce frequency modulation technique known as slope modulation while the receiver uses slope detection to demodulate. Frequency modulation is being used as variations in frequency causing its resilience to signal level variations. FM modulation has a higher signal to noise ratio making it suitable for high quality broadcast transmissions. Hardware circuitry for both transmitter and receiver will be designed and implemented, together with a laser points to perform point-like communication. Multiple transmitters and receivers can be built to reproduce a truly surround illusion of the source environment. Through this project a cheap and efficient way to transmit audio signal over free space will be highlighted.
author2 Gan Woon Seng
author_facet Gan Woon Seng
Chan, Chun Yan.
format Final Year Project
author Chan, Chun Yan.
author_sort Chan, Chun Yan.
title Audio beam system : projecting sound in laser precision
title_short Audio beam system : projecting sound in laser precision
title_full Audio beam system : projecting sound in laser precision
title_fullStr Audio beam system : projecting sound in laser precision
title_full_unstemmed Audio beam system : projecting sound in laser precision
title_sort audio beam system : projecting sound in laser precision
publishDate 2010
url http://hdl.handle.net/10356/40770
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