Nanda Sinha
Newbie level 4
How to explain effect of a missing frequency in time domain ? As we know it is simple task when we talk about frequency domain and missing a frequency component in there (in spectrum).What about time domain . Let's take a example:
I have a signal in time domain with 'N' frequencies in frequency domain(seeing these frequencies in spectrum).Now if I remove 1 frequency component from signal by subtracting the sine/cosine signal in time domain with that frequency and amplitude at that frequency.Now that the signal containing all 'N' frequencies in time domain whose amplitude is in volts(assuming), will get affected in amplitude because subtracted sine/cosine wave had values which were there before subtracting.So it became different signal altogether with 'N-1' frequencies in frequency domain. I want to know the effect of this less/more (changed ) amplitude of the signal.
In simple words I just want to know that if I see a signal as the sum of different frequency components then I can understand the effect of every frequency on some system or circuit but I want to understand the effect of frequencies in time domain.I hope I am you get an intuition.English is not my 1st language . I will rephrase the question if anyone wants.
I have a signal in time domain with 'N' frequencies in frequency domain(seeing these frequencies in spectrum).Now if I remove 1 frequency component from signal by subtracting the sine/cosine signal in time domain with that frequency and amplitude at that frequency.Now that the signal containing all 'N' frequencies in time domain whose amplitude is in volts(assuming), will get affected in amplitude because subtracted sine/cosine wave had values which were there before subtracting.So it became different signal altogether with 'N-1' frequencies in frequency domain. I want to know the effect of this less/more (changed ) amplitude of the signal.
In simple words I just want to know that if I see a signal as the sum of different frequency components then I can understand the effect of every frequency on some system or circuit but I want to understand the effect of frequencies in time domain.I hope I am you get an intuition.English is not my 1st language . I will rephrase the question if anyone wants.