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Matched filter is a demodulation technique with LTI.

Amplitude shift keying and uni-polar PAM both schemes are called as on off keying

The inductor offers high reactance to ac component and zero resistance to dc component. So, it blocks the ac component which cannot be bypassed by the capacitors.

For all practical purposes, aac=adc=a and practical values in commercial transistors range from 0.9-0.99. It is the measure of the quality of a transistor. Higher is the value of a, better is the transistor in the sense that collector current approaches the emitter current.

Continuous frequency shift keying has no phase discontinuity between symbols

Reception of FSK can be either phase coherent or phase non coherent

Frequency shift keying uses correlation receiver and phase locked loop

The series element of band stop filter is tank circuit which consist of parallel combination of inductance and capacitance

Amplifier amplifies the input

Recovering information from a transmitted signals by using electronic circuits (consisting of diodes and etc) is called as demodulation

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