Considering a frequency-division multiplexing system where a baseband signal from sending end is x1(t). The maximum frequency of x1(t) may vary from 500 Hz to 1000 Hz . The modulating frequency is 20 kHz. At the reciving end there is a Bandpass filter. You will have to design a RC Low pass and a RC Hign pass filter which will be connected in series to perform together as a Bandpass filter. The filters should have variable cutoff frequencies so that they can be tuned over a range to pass the desired signal spectrum.
Considering a frequency-division multiplexing system where a baseband signal from sending end is x1(t). The maximum frequency of x1(t) may vary from 500 Hz to 1000 Hz . The modulating frequency is 20 kHz. At the reciving end there is a Bandpass filter. You will have to design a RC Low pass and a RC Hign pass filter which will be connected in series to perform together as a Bandpass filter. The filters should have variable cutoff frequencies so that they can be tuned over a range to pass the desired signal spectrum.
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Considering a frequency-division multiplexing system where a baseband signal from sending end is x1(t). The maximum frequency of x1(t) may vary from 500 Hz to 1000 Hz . The modulating frequency is 20 kHz. At the reciving end there is a Bandpass filter.
You will have to design a RC Low pass and a RC Hign pass filter which will be connected in series to perform together as a Bandpass filter. The filters should have variable cutoff frequencies so that they can be tuned over a range to pass the desired signal spectrum.
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