Understanding Undersampling Technique
All engineers know the sampling theory and the fact that you need to sample the signal at least at twice the maximum frequency contained within the signal of interest. By the way merely applying the Nyquist criteria or Shannon theory, can lead to design more expensive system than actually required. The article shows how to properly interpret Nyquist criteria and Shannon theory, thus making you aware of the undersampling technique as possible solution to decrease the system costs.
