If you were listening to music with a modulating factor of 2.4 (zero carrier power) how would this sound?
Added by Christina R.
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" In the context of audio or radio signals, the modulating factor (also known as the modulation index) is a measure of how much the amplitude of the carrier signal is varied by the modulating signal. It is typically used in amplitude modulation (AM) and indicates Show more…
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B- A FM modulator is used to transmit a message with amplitude of 4 Volts and frequency of 20 Hz, the frequency deviation constant for the modulator is 25 Hz/V , and the carrier wave has amplitude 10 Volts and frequency 2000Hz 1- What is the power of the FM modulated signal? Assume R=1Ω 2- What is the approximate bandwidth of the FM modulated signal? 3- How would your answer to part (2) change if the amplitude of message is doubled? 4- How would your answer to part (2) change if the frequency of the carrier is doubled?
Suman K.
In the receiver model, a white Gaussian noise of zero mean and power spectral density N0/2 is added to the modulated signal and put through an ideal band-pass filter. The output of the band-pass filter is then applied to the detector. Assume a modulating signal m(t) as a sample function of random process with zero mean, power 1.2 Watts and bandwidth of 9 kHz. The modulated signal is given s(t) = Ac cos(2̀̀fc t + 2̀̀(0.5) ∠ m(t) dt) and the detector is an ideal frequency discriminator followed by a LPF. If Ac is 4 volts, fc is 104 MHz, the bandwidth of s(t) is 195 kHz and assuming that the carrier to noise ratio is large, then the power in the in signal related to the noise at the output of the low pass filter (output of the detector) is
Adi S.
a method of placing information on electro magnetic waves by modulating the frequency of a carrier wave with an audio signal , producing wave of constant amplitude but varying frequency is?
Shaiju T.
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