3. A sinusoidal message signal of amplitude 1 Volt and frequency 300 Hz is frequency modulated with kf = 500 Hz/V. The receiver FM demodulation model is shown in the figure below. There is an ideal band-pass filter (NOT baseband low-pass filter) passing 100|f|≤400 at the discriminator output. (a) Use Carson's rule to estimate the pre-detection bandwidth. (b) If the SNR at the receiver input is 500, calculate the output SNR. FM signal + s(t) Σ Band-pass Filter x(t) Limiter Noise w(t) v(t) Band-pass Output Discriminator Filter signal

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Frequency Modulation

Frequency modulation is a method or process of encoding the data of a specific signal (analog or digital) by modulating the carrier wave frequency according to the frequency of the modulated signal. Modulated signals are nothing more than information or data that should be conveyed after being converted into electronic signals.