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Noise in FTIR

Noise in FTIR. Nyquist sampling theorem Sample at twice the highest frequency This is for ideal case Noise in interferogram can make it difficult to accurately extract frequencies. Noise in FTIR. Nyquist sampling theorem Sample at twice the highest frequency This is for ideal case

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Noise in FTIR

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  1. Noise in FTIR • Nyquist sampling theorem • Sample at twice the highest frequency • This is for ideal case • Noise in interferogram can make it difficult to accurately extract frequencies

  2. Noise in FTIR • Nyquist sampling theorem • Sample at twice the highest frequency • This is for ideal case • Noise in interferogram can make it difficult to accurately extract frequencies

  3. Project Goal • Determine minimum sampling frequencies needed for different levels of noise in a signal to accurately reconstruct the spectrum • Look at the relationship between frequency content and minimum sampling frequencies for a given noise level • Spacing between frequencies in spectrum • Number of frequencies in the spectrum

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