Go to www.awrcorp.com
Back to search page Click to download printable version of this guide.

BPSK Bit or Symbol Error Rate: BPSK_BERREF

Summary

BPSK_BERREF generates a theoretical BPSK Bit Error Rate reference curve.

Parameters

Name Type Range
Block Diagram System Diagram N/A
BER/SER Meter System BER/SER Meter N/A
Modulation Type List of options N/A

Result

The measurement plots a theoretical BPSK bit error probability along the y-axis and the swept variable (typically Eb/N0) along the x-axis. The y-axis should normally be set to use log scaling.

Graph Type

This measurement can be displayed on a rectangular graph or tabular grid.

Computational Details

The measurement generates a reference curve based on the settings of the meter block selected in the BER/SER Meter setting. Values for Pb are calculated for each value specified in the meter's SWPTV parameter.

The following BPSK modulation types are supported:

COHERENT BPSK: [1]

where Q(x) is the Gaussian integral or Q-function:

and is approximated numerically, Eb is the average bit energy and N0 is the noise power spectral density.

OPTIMUM DIFFERENTIAL BPSK: [2]

SUBOPTIMUM DIFFERENTIAL BPSK: [2]

where the ideal narrow-band IF filter has bandwidth W=0.57/T, where T is the bit (and symbol) duration.

COHERENT DIFFERENTIALLY ENCODED BPSK: [3]

References

[1] Xiong, F., Digital Modulation Techniques, pg. 127

[2] Xiong, F., Digital Modulation Techniques, pg. 134

[3] Xiong, F., Digital Modulation Techniques, pg. 136

Please send email to awr.support@ni.com if you would like to provide feedback on this article. Please make sure to include the article link in the email.

Legal and Trademark Notice