Reconstruction

Is this signal perfect reconstructable?

Is this signal perfect reconstructable?
  1. How do you reconstruct a signal?
  2. What is the need of reconstruction of signals?
  3. What is reconstruction in digital communication?

How do you reconstruct a signal?

The reconstruction process consists of replacing each sample by a sinc function, centered at the time of the sample and scaled by the sample value x(nT) times 2fc/ fs and adding all the functions so created. Suppose the signal is sampled at exactly Nyquist rate fs= 2fm, Then fm= fs/2 = fs- fm and Fm= 1/2 = 1- Fm.

What is the need of reconstruction of signals?

In signal processing, reconstruction usually means the determination of an original continuous signal from a sequence of equally spaced samples. This article takes a generalized abstract mathematical approach to signal sampling and reconstruction.

What is reconstruction in digital communication?

Reconstruction is the process of creating an analog voltage (or current) from samples. A digital-to-analog converter takes a series of binary numbers and recreates the voltage (or current) levels that corresponds to that binary number. Then this signal is filtered by a lowpass filter.

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