Communications Toolbox

Random Signals and Error Analysis

Simulating a communication system often involves analyzing its response to the noise inherent in real-world components. Such analysis aims to illustrate the system's response and possibly to help design a system appropriate for the most likely kinds of noise.

Error Analysis Features of the Toolbox

Error analysis tasks supported in the Communications Toolbox include

• Simulating noise or signal sources using random signals
• Computing the error rate or number of errors
• Plotting an eye diagram
• Generating a scatter plot

This section describes these toolbox functions that accomplish error-analysis tasks: biterr, eyediagram, randerr, randint, randsrc, scatterplot, symerr, and wgn. Because error analysis is often a component of communication system simulation, other portions of this guide provide additional examples.

Using the Communications Toolbox

Random Signals