Reception Of Audio And Video Signal Using Square Wave Frequency Modulation

Ros Nurul Farehah, Salleh (2011) Reception Of Audio And Video Signal Using Square Wave Frequency Modulation. Project Report. UTeM, Melaka, Malaysia. (Submitted)

	PDF (24 pages) Reception_Of_Audio_And_Video_Signal_Using_Square_Wave_Frequency_Modulation_24_pages.pdf - Submitted Version Download (923kB)
	PDF (Full Text) Reception_Of_Audio_And_Video_Signal_Using_Square_Wave_Frequency_Modulation_Full_Text.pdf - Submitted Version Restricted to Registered users only Download (3MB)

Abstract

The title of this project is Reception of Audio and Video Signal using Square Wave Frequency Modulation (SWFM). This project is referring to the designing of reception of voice and video signal using square frequency modulation. It is intended to receive the signal from transmitter source by using optical fiber system. This device is focusing on the application of PLL demodulation and Square to Sine Oscillator circuit which has their own function to complete this square wave modulation. PLL Demodulation has been chosen because the PLL is an electronic circuit that controls an oscillator so that it maintains a constant phase angle on the frequency of an input, or reference, signal. A PLL ensures that a communication signal is locked on a specific frequency and can also be used to generate, modulate and demodulate a signal and divide a frequency. PLL is used often in wireless communications where the oscillator is usually at the receiver and the input signal is extracted from the signal received from the remote transmitter. This project uses the application of an optical fiber as the transmission medium due to relative newness of the technology. It provides the better system performance, immunity to electrical noise, lower signal attenuation (loss) and resistant to temperature variations and many others.

Actions (login required)

View Item