Jittered uniform sampling - examples
S. Signell · 2005
In many communication systems jitter is a problem causing performance degradation. The jitter is present in both analogue parts and in the sampling process. In this contribution, examples of calculated and simulated spectra are shown for uncorrelated uniform and uncorrelated and correlated Gaussian jitter distributions. Closed form expressions are also given for selected correlated noise cases. In two companion contributions, random input signals and deterministic input signals perturbed by jitter are analysed and the mathematical foundation to the examples given here are made. The analytical results show that the output signal spectrum consists of both discrete and continuous parts. For some applications, such as instruments for spectrum analysis, large jitter can be of great use, utilizing the fact that discrete alias components can be completely removed with sufficiently large jitter.