JoVE Logo

Sign In

Chapter 18

Sampling

Sampling Theorem
Sampling Theorem
Consider the continuous-time signal x(t), and a train of impulses where Ts,  is the sampling interval, and fs, is the sampling frequency. Multiplying ...
Sampling Continuous Time Signal
Sampling Continuous Time Signal
A continuous-time signal is sampled using impulse-train sampling followed by the zero-order hold method. Impulse-train sampling uses a periodic impulse ...
Reconstruction of Signal using Interpolation
Reconstruction of Signal using Interpolation
Consider a continuous signal and its sampled counterpart with a sampling period T. Applying a zero-order hold to the sampled signal results in a piecewise ...
Aliasing
Aliasing
Consider a time-domain signal and its Fourier transform to reveal the spectrum. Sampling the signal at a specific frequency creates multiple scaled ...
Downsampling
Downsampling
Consider a sampled sequence with zero values between sampling instants. Replace it by taking every N-th value of the sampled sequence. The original and ...
Upsampling
Upsampling
Consider a decimated signal with a reduced frequency range due to its lower sampling rate. Insert zeros between each sample to upsample, that introduces ...
Bandpass Sampling
Bandpass Sampling
Consider a signal sampled at a rate greater than twice its highest frequency. A signal with most of its energy concentrated in a narrow frequency band is ...
JoVE Logo

Privacy

Terms of Use

Policies

Research

Education

ABOUT JoVE

Copyright © 2025 MyJoVE Corporation. All rights reserved