| 21. | Often the Fourier transform is converted to the power spectrum, which is the magnitude of each frequency component squared.
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| 22. | Then a diffraction pattern is created by using the power spectrum function in Digital Micrograph software ( middle ).
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| 23. | The Fourier transform of the second-order cumulant, i . e ., the autocorrelation function, is the traditional power spectrum.
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| 24. | The only unknown in this expression, F, can be determined by fitting this expression to the experimental power spectrum.
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| 25. | Systems that show QPOs sometimes also show nonperiodic noise that appears as a continuous curve in the power spectrum.
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| 26. | It is common that the ( cross-) power spectrum is well approximated by a power law of the form
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| 27. | It is contaminated by the presence of the power spectrum of foreground components, so that the total power spectrum is:
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| 28. | It is contaminated by the presence of the power spectrum of foreground components, so that the total power spectrum is:
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| 29. | Although, the power spectrum efficiency of a non-constant amplitude envelope is always higher than that of a constant envelope modulation.
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| 30. | The calculation of the non-linear matter power spectrum poses another challenge for weak lensing measurements and must include baryonic effects.
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