Electronics and Communication Engineering - Communication Systems - Discussion

Discussion Forum : Communication Systems - Section 1 (Q.No. 13)
13.
Non-coherently detection is not possible for
PSK
ASK
FSK
both (a) and (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
14 comments Page 2 of 2.

Gaurav said:   1 decade ago
It is not possible because the imprint of the data lies in phase itself.

Amit Kumar Pandit said:   1 decade ago
Because in PSK modulation technique the phase of the modulated is changed according to the phase of the baseband signal.

ARCHANA JHA said:   1 decade ago
Non-coherent detection is not possible because at the receiver end the same frequency should be used as that of at the transmitter end, And coherency maintenance is must.
(1)

Chandika mohan said:   1 decade ago
With respect to phase when we talk, detection is random in nature and mapping of information cannot be done correctly, so we need exact estimation and detection process.


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