| Communications Toolbox | |
Error rate plots provide a visual way to examine the performance of a communication system, and they are often included in publications. This section mentions some of the tools that you can use to create error rate plots, modify them to suit your needs, and do curve fitting on error rate data. It also provides an example of curve fitting. For more detailed discussions about the more general plotting capabilities in MATLAB, see the MATLAB documentation set.
In many error rate plots, the horizontal axis indicates Eb/N0 values in dB and the vertical axis indicates the error rate using a logarithmic (base 10) scale. To see an example of such a plot, as well as the code that creates it, see Comparing Theoretical and Empirical Error Rates. The part of that example that creates the plot uses the semilogy function to produce a logarithmic scale on the vertical axis and a linear scale on the horizontal axis.
Other examples that illustrate the use of semilogy are in these sections:
Example: Using the Semianalytic Technique, which also illustrates
Plotting two sets of data on one pair of axes
Adding a title
Adding a legend
Plotting Theoretical Error Rates, which also illustrates
Adding axis labels
Adding grid lines
| | Comparing Theoretical and Empirical Error Rates | Curve Fitting for Error Rate Plots | |
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