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If frequencies above the Nyquist Frequency are not filtered out, energy in these will appear as spectral artefacts below the Nyquist Frequency. Optical and electronic anti aliasing can be used to prevent this. Sometimes the higher frequencies are said to be “folded” back so the term “folding” is used.

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Settore/Dominio: Chimica
Categoria: Spettroscopia
Company: Newport
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Software; Computer; Sistemi operativi

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Storia dell'arte; Storia dell'arte generale

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Storia dell'arte; Storia dell'arte generale

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Chimica; Spettroscopia

The ideal input beam is a cylinder of light. No beam of finite dimensions can be perfectly collimated; at best there is a diffraction limit. In practice the input beam is a cone ...

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Chimica; Spettroscopia

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Chimica; Spettroscopia

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Chimica; Spettroscopia

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Chimica; Spettroscopia

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бедерсіз спектр

Chimica; Spettroscopia

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Settore/Dominio: Corpi idrici Categoria: Laghi

Гурон көлі

The second largest of the Great Lakes of North America, bounded on the west by Michigan (U. S. ) and on the north and east by Ontario (Can. ). The ...