SINAD (Signal, Noise, and Distortion) Measurement

Publish Date: Dec 08, 2014 | 3 Ratings | 3.67 out of 5 | Print | Submit your review


Given an input signal, finds the fundamental frequency and computes Signal, Noise, And Distortion (SINAD). SINAD is defined as the ratio of Signal plus Noise plus Distortion and Noise plus Distortion. You do not need to specify any other input. You can control the amplitude, frequency, and noise level of the input signal. The default signal includes a secondary tone at 11.87 kHz. This program is a shipping example VI included with NI LabVIEW.

LabVIEW Signal Processing Example Programs
National Instruments LabVIEW is an award-winning development environment optimized for engineers and scientists creating test, measurement, and control applications. With NI LabVIEW, users can quickly and easily acquire real-world signals, perform analysis to ascertain meaningful data, and communicate or store results through a variety of means. For more information about LabVIEW, visit

More information on LabVIEW and NI signal processing can be found at the Signal Processing Resource Center.

1. Front Panel

This is a picture of the VI's front panel. To view the block diagram and additional documentation, download the attached file.

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