Teaching TN TRB EC Mock Test Communication Systems Amplitude Modulation Conventional Amplitude Modulation
A signal A cos 2πfct + B.Sin 2πfct is fed into envelope detector. The output of the envelop detector follows ______ at output.
1
A
2
B
3
\(\sqrt {{A^2} + {B^2}}\)
4
\(\sqrt {{A^2} - {B^2}}\)