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Appl Opt. 2010 Oct 1;49(28):5366-73. doi: 10.1364/AO.49.005366.

Radiometric and signal-to-noise ratio properties of multiplex dispersive spectrometry.

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  • 1Consiglio Nazionale delle Ricerche, Istituto di Fisica Applicata Nello Carrara, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy.


Recent theoretical investigations have shown important radiometric disadvantages of interferential multiplexing in Fourier transform spectrometry that apparently can be applied even to coded aperture spectrometers. We have reexamined the methods of noninterferential multiplexing in order to assess their signal-to-noise ratio (SNR) performance, relying on a theoretical modeling of the multiplexed signals. We are able to show that quite similar SNR and radiometric disadvantages affect multiplex dispersive spectrometry. The effect of noise on spectral estimations is discussed.

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