Dynamic Testing of Data Acquisition Channels Using the Multiple Coherence Function
نویسنده
چکیده
The use of the Fast Fourier Transform (FFT) has revolutionized digital signal processing in many ways; and one of its principle uses continues to be the calculation of power spectral densities that are then used to estimate system transfer functions. When performing transfer functionmeasurements, best practise dictates that the coherence between the input and output also be computed to provide a measure of the confidence in the measurement.
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