Matlab Examples - Amplitude Demodulation (synchronous detection)

[7777pakistan]

plz upload FM demodulation video

[karolin19871]

muy buena¡¡¡¡¡ very goooooood thank you

[dinto1]

y did u add 5hz filter...i mean how.....i am confused plz help

[freedomuniversitytv]

@dinto1 The mathematics show that the output of the multiplier at the receiver has frequency components centered around twice the carrier frequency. The low pass filter is needed to get rid of these high frequency components and capture the message signal. Note multiplying at the receiver with the same carrier yields m(t)cos(wt)*cos(wt)=m(t)/2+m(t­)*cos(2wt)/2. Need LPF to get rid of m(t)*cos(wt), where w is the carrier frequency in rads/sec and m(t) is the message. Hope this helps! Dr J

[dinto1]

@freedomuniversitytv Thanks this helped me

[ineedaname004]

oh wow ! nice work.

[johnykoukou]

great video!!! thank you

[shazaduh]

good job please keep it up

[yehiaashour]

cool stuff