This video considers a wider class of nonstationary processes that share
some similarities with wide-sense periodic processes. Such
nonstationary processes occur in systems where, for example, there is
some aspect of upsampling, or a random process generates a new process
that is a function of some deterministic signal that has temporal
extent. This video looks at wide-sense periodic and wide-sense
cyclo-stationary processes. An example of pulse-amplitude modulation is
presented. Finally, globally non-stationary but locally-stationary
processes are discussed, called quasi-stationary processes. The
application of speech modelling is considered as an example of a
PGEE11164 Probability, Estimation Theory, and Random Signals Lectures -- School of Engineering, University of Edinburgh. Copyright James R. Hopgood and University of Edinburgh, Scotland, United Kingdom (UK). 2020.
Institute for Digital Communications, Alexander Graham Bell Building, The King's Buildings, Thomas Bayes Road, Edinburgh, EH9 3JL. UK.