Using graphical programming for the organization of spectrum analyzers combined type
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Abstract
To create a project of broadband spectrum analyzer combined type in a range of sound frequencies applied the basic principles of graphical programming environment LABVIEW. Frequency channel analyzer are presented in the traditional form of acoustic measurements: a octave, half octave and one-third octave filters. Each frequency channel is assumed to calculate the spectrum by FFT (fast Fourier transform) within the band defined by this channel.
The draft provides for a system calibration and adjustment of the analyzer, using the tonal and noise-like calibrating signals and provides the ability to display the results in a linear and logarithmic scale.
The Bible. 4, Fig. 1.
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