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Compare ASK , PSK & FSK systems.

written 9.5 years ago by teamques10 ★ 70k

•   modified 3.9 years ago

principles of communication network

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written 9.5 years ago by teamques10 ★ 70k

Parameters	ASK	FSK	PSK
Variable characteristics	Amplitude	Frequency	Phase
Bandwidth	Is proportional to signal rate (B =(1+d)S),d is due to modulation & filtering ,lies between 0 & 1.	B=(1+d)×S+2Δf	B=(1+d)×S
Noise immunity	low	High	High
Complexity	Simple	Moderately complex	Very complex
Error probability	High	Low	Low
Performance in presence of noise	Poor	Better than ASK	Better than FSK
Bit rate	Suitable upto 100 bits/sec	Suitable upto about 1200 bits/sec	Suitable for high bit rates

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