Signals & Systems For Dummies Extras

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Simulate the System in Python for the Spectral Analysis Case Study

To finish off this case study, simulate the system in Python. To give you a feel for sinusoidal spectrum analysis and window selection, here’s a Python simulation that utilizes the test signal: [more…]

Part of the Series: Signal Processing Case Study: Looking through Windows for Spectral Analysis

Examine the Open-Loop System Function

Before getting into the closed-loop system function of the CD/DVD case study, consider a few attributes of the open-loop system function by writing it out, leaving [more…]

Part of the Series: Control Systems Case Study: Spinning Data on CD/DVDs

Investigate the Closed-Loop System Function

With the simplification to the open-loop system function in place, you can dive in and find the closed-loop system function of the CD/DVD case study, with full variable substitution. Here’s the closed-loop [more…]

Part of the Series: Control Systems Case Study: Spinning Data on CD/DVDs

Create a System Block Diagram for the Cruise Control Case Study

After the system has been linearized, a system block diagram utilizing Laplace transform (LT) techniques for feedback control of the vehicle velocity can be constructed. The differential equation can now [more…]

Part of the Series: Control System Case Study: Cruise Control

Simulate the Time Domain for the Cruise Control Case Study with Pylab

In this cruise control case study, you can use Pylab and the SciPy function lsim() to evaluate the cruise control performance with a 4 percent grade. Note that a grade of 4 percent means rise over run [more…]

Part of the Series: Control System Case Study: Cruise Control

Working across Domains Example: Take the RC Low-Pass Filter to the Z-Domain

Working across domains is a fact of life as a computer and electronic engineer. Solving real computer and electrical engineering tasks requires you to assimilate the vast array of signals and systems concepts [more…]

How to Work and Verify Convolution Integral and Sum Problems

Mastering convolution integrals and sums comes through practice. Here are detailed analytical solutions to one convolution integral and two convolution sum problems, each followed by detailed numerical [more…]

How to Characterize the Peaking Filter for an Audio Graphic Equalizer

A peaking filter for an audio graphic equalizer provides gain or loss (attenuation) at a specific center frequency fc. A peaking filter has unity frequency response magnitude, or 0 dB gain, at frequencies [more…]

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