dsb demodulation explain the spectra of original signal modulated signal modulated signal multip

For AM signal, we can expand the equation, so it becomes VAM equals to VC sin omega c t plus VC

here we get the Qt value Q of t equal to m1 t cos Wct plus m2 t of sin Wt. So, here we get the v

Okay, so we have the data, and if we look at it and we graph it, we know that F max is equal to

So, here we are given the message signal M of t is equals to 2 cosine of 400 pi t plus 4 sine of

In this question S of t is given which is 1 plus 0 .2 this is cos 2 pi fx and then we have this

Question

DSB demodulation Explain the spectra of the original signal, modulated signal, modulated signal multiplied with the carrier signal, lowpass filter, and the demodulation signal. Spectrum of the Message Signal Spectrum of the Mixer Output 0.2 0.1 0.05 0.1 500 -400 -300 -200 -100 0 100 200 300 400 500 -500 -400 -300 -200 -100 0 100 200 300 400 500 Spectrum of the Modulated Signal Lowpass Filter Characteristics 0.1 0.05 -500 -400 -300 -200 -100 0 100 200 300 400 500 -500 -400 -300 -200 -100 0 100 200 300 400 500 Spectrum of the Mixer Output 0.1 Spectrum of the Demodulator Output 0.2 0.05 0.1 -500 -400 -300 -200 -100 0 100 200 300 400 500 -500 -400 -300 -200 -100 0 100 200 300 400 500 Frequency Spectrum of the Message Signal The Message Signal 0.15 0.5 0.1 1 0.05 -0.5 -500 400 300 200 100 0 100 200 300 400 500 Frequency Spectrum of the Demodulator Output 0.15 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2 The Demodulator Output 0.1 0.05 -500 -400 -300 -200 -100 100 200 300 400 500 Frequency 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2 Time

          DSB demodulation  
Explain the spectra of the original signal, modulated signal,
modulated
signal multiplied with the carrier signal, lowpass
filter, and
the demodulation signal.
Spectrum of the Message Signal
Spectrum of the Mixer Output
0.2
0.1
0.05
0.1
500 -400 -300 -200 -100 0 100 200 300 400 500
-500 -400 -300 -200 -100 0 100 200 300 400 500
Spectrum of the Modulated Signal
Lowpass Filter Characteristics
0.1
0.05
-500 -400 -300 -200 -100 0 100 200 300 400 500
-500 -400 -300 -200 -100 0 100 200 300 400 500
Spectrum of the Mixer Output
0.1
Spectrum of the Demodulator Output
0.2
0.05
0.1
-500 -400 -300 -200 -100 0 100 200 300 400 500
-500 -400 -300 -200 -100 0 100 200 300 400 500
Frequency
Spectrum of the Message Signal
The Message Signal
0.15
0.5
0.1
1
0.05
-0.5
-500 400 300 200 100 0 100 200 300 400 500 Frequency Spectrum of the Demodulator Output 0.15
0
0.02 0.04 0.06 0.08 0.1
0.12 0.14 0.16 0.18 0.2
The Demodulator Output
0.1
0.05
-500 -400 -300 -200 -100 100 200 300 400 500 Frequency
0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2 Time

dsb demodulation explain the spectra of original signal modulated signal modulated signal multiplied with the carrier signal lowpass filter and the demodulation signal spectrum of the messag 31968

Added by Kyle P.

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