Plotting a sampled signals DTFT using its CTFT

1. What is the equation for the sampled signal?
2. What is CTFT in DSP?
3. What is sampling in DFT?
4. How do you use sampling in signals?

What is the equation for the sampled signal?

The process of sampling a time-varying signal. A continuous time-varying 1-D signal is sampled by narrow sampling pulses at a regular rate f_r = 1/T, which must be at least twice the bandwidth of the signal.

What is CTFT in DSP?

Digital Signal Processing

The Continuous-Time Fourier Transform (CTFT) is the version of the fourier transform that is most common, and is the only fourier transform so far discussed in EE wikibooks such as Signals and Systems, or Communication Systems.

What is sampling in DFT?

The sampling theorem provides that a properly bandlimited continuous-time signal can be sampled and reconstructed from its samples without error, in principle.

How do you use sampling in signals?

Sampling a continuous time signal produces a discrete time signal by selecting the values of the continuous time signal at evenly spaced points in time. Thus, sampling a continuous time signal x with sampling period Ts gives the discrete time signal xs defined by xs(n)=x(nTs).