Compare binary ASK, FSK &PSK modulation techniques
Sr. No
|
Parameter
|
Binary ASK
|
Binary FSK
|
Binary PSK
|
1 |
Variable Characteristic
|
Amplitude
|
Frequency
|
Phase
|
2 |
Maximum bandwidth(Hz)
|
2fb
|
5 fb /3
|
2fb
|
3 |
Noise immunity
|
low
|
high
|
high
|
4 |
Error probability
|
high
|
low
|
low
|
5 |
Performance in presence of noise
|
poor
|
Better than ASK
|
Better than FSK
|
6 |
Complexity
|
Simple
|
Moderately complex
|
Very complex
|
7 |
Bit rate
|
Suitable upto 100 bits/sec
|
Suitable upto about 1200 bits/sec
|
Suitable for high bit rates
|
8 |
Detection method
|
Envelope
|
Envelope
|
Coherent
|