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Homework Help
Introductory Physics Homework Help
Combining High and Low Pass Filters
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[QUOTE="waley, post: 5868025"] [h2]Homework Statement [/h2] Suppose we have a noisy signal (superposition of many frequencies), but we are only concerned with a particular part of the signal within the noise at a frequency f(desired) = 1 GHz. In a sentence or two, explain how you could isolate the desired part of the signal by using low-pass and high-pass filters. Assuming the noise is far from the desired signal in frequency (≥ ±200 MHz from f(desired)), suggest component values that should achieve this effect. [h2]Homework Equations[/h2] cutoff frequency: w = (RC)^-1 [h2]The Attempt at a Solution[/h2] If I use the high-pass filter, all lower frequencies will be blocked; if I use the low-pass, all higher frequencies will be blocked. If I use a combo of both in the same circuit with the same R,C values, then wouldn't all frequencies be blocked? [/QUOTE]
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Combining High and Low Pass Filters
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