May 5th, 2015
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Aim : To design an optical data communication network which uses Offset Quadrature Phase Shift Keying modulation technique.

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OptisystemAim : To design an optical data communication network which uses Offset Quadrature Phase Shift Keying modulation technique.oftSware used : OptisystemComponents used:1) Psuedo Random Bit Sequence Generator2) RZ Pulse Generator3) Fork 1x24) Oscilloscope Visualiser5) RF Spectrum Analyser6) OQPSK Modulator7) Quadrature De-modulator8) M-ary Threshold Detector9) Eye Diagram Analyzer10) PSK Sequence DecoderComponents Description and their Specifications:PRBS Generator :In this project, the data is in the form of digital data i.e 0s & 1s. Hence in order to generate a digital sequence we do need a data generating source, hence we use a digital data source generating a random binary sequence known as pseudo random binary sequence generator. The bit sequence is designed to approximate the characteristics of random data.Bit rate = 30375000 bits/secOrder = 8RZ Pulse Generator : Generates a Return to Zero (RZ) coded signal. It uses RZ line coding technique to generate electrical signal using binary pulses as its input.Duty cycle is 0.5 bits. Rise time and Fall time both are equal to 0.05 bits.Sample rate = 1.94 GHzFork 1x2 : Here in this project , the bit sequence is to be given to RZ pulse generator and OQPSK modulator. Fork 1x2 copies the input signal into two output signals. This tool allows us to duplicate component output ports.Oscilloscope Visualizer: This visualizer allows us to calculate and display electrical signa

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