Howtosignalprocessing
- How does time delay affect phase?
- What happens to the spectrum of signal in frequency domain if there is a time delay in time domain?
- What is the relation between time domain and frequency domain?
- What effect does the linear phase have on a signal in the time domain?
How does time delay affect phase?
The phase shift associated with a time delay decreases linearly with a slope of -ωa, where a is the length of the time delay. If we examine the time delay in the frequency domain, we do so with plots of magnitude and phase.
What happens to the spectrum of signal in frequency domain if there is a time delay in time domain?
the signal will be same so same frequency content but our time t=0 has already started 1 sec before so waveform will only shift by 1 sec right i.e phase not frequency component.
What is the relation between time domain and frequency domain?
Parseval's theorem gives the relationship between the squared integral of a time function and that of its Fourier transform, namely, the energy in the time domain is equal to the energy in the frequency domain.
What effect does the linear phase have on a signal in the time domain?
Linear Phase preserves the time-domain shape of a signal
The IIR creates a distortion that changes the shape of the modulated waveform. This distortion is caused by the filtering process itself, and can be explained by looking at the phase response of the filter design. a constant.
