Search for tag: "summation"

REF2020: Feng Yuan- Small-x TMDs an overview

REF2020: Feng Yuan- Small-x TMDs an overview

From  Lyndsey Ballantyne on December 11th, 2020 0 likes 9 plays 0  

Topic 72: Time-Domain Analysis of Response to Random Signals using the System Impulse Response (PETARS, Chapter 10)

This video looks at the method for calculating the output statistics for a linear time-invariant (LTI) system in response to a wide-sense stationary (WSS) input using a time-domain method given the…

From  James Hopgood on November 26th, 2020 0 likes 55 plays 0  

Topic 70: Cross-Power and Complex Spectral Densities (PETARS, Chapter 9)

This Topic extends the definition of the power-spectral density in two ways. First, it considers the cross-power spectral density (CPSD) for considering the spectral characteristics of two-jointly…

From  James Hopgood on November 24th, 2020 0 likes 48 plays 0  

Topic 69: Definition and Properties of the Power-Spectral Density (PETARS, Chapter 9)

This video presents the formal definition of the power-spectral density (PSD) of a wide-sense stationary (WSS) process, and its inverse relationship, both through discrete-Time Fourier Transform…

From  James Hopgood on November 19th, 2020 0 likes 51 plays 0  

Topic 63: Properties of Autocorrelation sequences for WSS processes (PETARS, Chapter 8)

Second-order statistics are fundamental to the definition of wide-sense stationary (WSS) processes, and this video considers the properties that a WSS autocorrelation sequence (ACS) must satisfy.…

From  James Hopgood on November 8th, 2020 0 likes 83 plays 0  

Topic 60: Statistical Description of Random Processes (PETARS, Chapter 8)

As with random vectors, other than in certain special cases, it can be difficult to describe and manipulate random processes through the use of joint-probability density functions (pdfs), although…

From  James Hopgood on November 3rd, 2020 0 likes 78 plays 0  

Topic 46: Cramer-Rao Lower Bound (PETARS, Chapter 6)

In this video, the question of finding the lower bound on the performance of all estimators for a particular probabilistic problem, as a benchmark with which to compare the performance of a given…

From  James Hopgood on October 24th, 2020 0 likes 95 plays 0  

Topic 43: Measuring Performance of an Estimator (PETARS, Chapter 6)

In this video, the question of measuring and quantifying the performance of an estimator is discussed. The video focusses on the concepts and definitions of bias and variance of the probability…

From  James Hopgood on October 22nd, 2020 0 likes 95 plays 0  

Topic 40: Sum of Independent Random Variables (PETARS, Chapter 5)

This Topic considers further the sum of random variables that was introduced in Topic 33 on auxiliary variables. The case of independent random variables and vectors is considered specifically,…

From  James Hopgood on October 18th, 2020 0 likes 70 plays 0  

Introduction to IFP art and design courses

Senior Teaching Fellow Robbie Bushe gives an overview of the two art and design courses on International Foundation Programme offer vey the Centre for Open Learning.

From  Robbie Bushe on August 28th, 2020 0 likes 91 plays 0  

Missing Values in Naive Bayes

Missing Values in Naive Bayes

From  Nigel Goddard on September 17th, 2016 2 likes 2,390 plays 2