Contributors in Science
Science > Acoustics
autospectrum
Science; Acoustics
For FFT measurements, the Fourier transform of a time signal is complex as it has magnitude and phase. The autospectrum is the average of the squared magnitude. For 1/n-octave ...
CE marking
Science; Acoustics
A label to show an instrument conforms to the specification of a European directive.
Fourier transform
Science; Acoustics
A mathematical operation for decomposing a time function into its frequency components (amplitude and phase). The process is reversible, and the signal can be reconstructed from ...
noise floor
Science; Acoustics
A measure of the signal created from the sum of all noise sources and unwanted signals within a measurement system. Signals beneath the noise floor cannot be measured.
coherent output power spectrum
Science; Acoustics
A measure of what part of the (output) power spectrum is fully coherent with the input signal.
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