
By doctorj, on October 9th, 2011% VIDEO GALLERIES: List of Video Playlist from the University of New South Wales (UNSW) Here are video galleries from UNSW’s You’ll find various collections of video courses from that program. Many of the videos are about one hour or so in length. Below is a list of video galleries from the University of New South [...] . . . → Read More: Video Galleries from the University of New South Wales
By doctorj, on September 11th, 2011% One common class of signals are sinusoids…that is they are either cosines or sines. The video shown below briefly reviews the definition of a sine, cosine, and tangent. [tubepress mode="tag" tagValue= 'soh cah toa drjctu'] Mathematically, the cosine signal is generally given as (Equation 1) where is the angular frequency (radians/sec), f is the [...] . . . → Read More: Signal Processing Tutorial: The Basic Sinusoids
By doctorj, on September 9th, 2011% An Introduction to Signal Processing Signal processing involves signals and systems. Today, you have multimedia computers, entertainment systems and digital communications systems and you can be sure that signal processing functions are involved. When it comes to the meaning of signals, you may be thinking of a signal as carrying information. Usually, that information is [...] . . . → Read More: Signal Processing Tutorial: Introduction to Signal Processing
By doctorj, on July 5th, 2009% We introduce the ztransform bringing polynomials and rational functions to help analyze linear discretetime systems. The discretetime convolution (or FIR convolution) is equivalent to polynomial multiplication and algebraic operations in the z transform domain can be translated as combining or decomposing linear timeinvariant (LTI) systems. The most common ztransforms are rational functions, that is, the [...] . . . → Read More: Overview and Introduction to the zTransform (Polynomial & Rational Functions)
By doctorj, on July 4th, 2009% The Matlab tutorial article continues with providing an example of a low pass filter (LPF) to graph its bode plot in Matlab. The low pass filter was implemented using a simple RCcircuit. To review, bode plots are basically logarithmic graphs of a linear timeinvariant system as a function of frequency. Bode plots are useful tools [...] . . . → Read More: Matlab Example – Bode Plots of a Low Pass Filter (Part 2)

