A 10 kHz sinusoidal is to be transmitted using FM in the presence of additive white Gaussian noise. The SNR improvement at the d
emodulator output is required to be 20 dB. Determine the peak frequency deviation required if
(a) No pre-emphasis/de-emphasis is used.
(b) A standard pre-emphasis/de-emphasis (with 1 f = 2.1 kHz ) is used.
(c) Based on your answers in parts (a) and (b), for a given output SNR, which FM system (with or without pre-emphasis/de-emphasis) will provide a larger baseband signal bandwidth?
(a) No pre-emphasis/de-emphasis is used.
(b) A standard pre-emphasis/de-emphasis (with 1 f = 2.1 kHz ) is used.
(c) Based on your answers in parts (a) and (b), for a given output SNR, which FM system (with or without pre-emphasis/de-emphasis) will provide a larger baseband signal bandwidth?
1 answer:
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