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. Author manuscript; available in PMC: 2011 Nov 1.
Published in final edited form as: Prog Nucl Magn Reson Spectrosc. 2010 Jul 30;57(4):381–419. doi: 10.1016/j.pnmrs.2010.07.001

Figure 2. Comparison of Spectra for Continuous and Sampled Signals.

Figure 2

(a) The spectrum of a continuous signal contains a single, infinitely sharp peak at the signal frequency. (b) The spectrum of the same signal sampled at regular intervals over a finite period of time shows both aliasing and truncation artifacts, reflecting the ambiguities of the sampling.