FREQUENCY RESPONSE FUNCTION ESTIMATE AND COHERENCE: PART II

Autor: A.L. Wicks
Rok vydání: 2001
Předmět:
Zdroj: Experimental Techniques. 25:38-40
ISSN: 1747-1567
0732-8818
DOI: 10.1111/j.1747-1567.2001.tb00041.x
Popis: This is but one example of how the looks of the estimated frequency response function can be deceptive. The evaluation of data requires the use of all the plots, the autospectrums of the input and the output, the coherence function and the estimated FRF. In addition, an understanding of how the data was collected, the method used for estimating the FRF and the meaning of all of these plots is needed. In the next installment, we will discuss the use of averaging to acquire quality estimates. There were 5 averages taken to acquire the data seen above. Was this enough or should I have taken more?
Databáze: OpenAIRE
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