Which of the following FM demodulator is sometimes known as pulse averaging discriminator?
|B.||zero crossing detection|
|D.||phase locked discriminator|
|Answer» B. zero crossing detection|
|Explanation: zero crossing detector is sometimes known as pulse averaging discriminator. the rationale behind this technique is to use the output of the zero crossing detector to generate a pulse train with an average value that is proportional to frequency of the input signal.|
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