Baseline-free quantitative absorption spectroscopy based on cepstral analysis

Quantitative absorption spectroscopy of nano-objects

Doppler-Free Saturated Absorption Laser Spectroscopy

The fundamentals of Doppler-free saturated absorption spectroscopy were explored for a rubidium sample. Two probe laser beams from a 780-nm diode laser were directed through the Rb cell, and one of them was crossed by a pump beam in the opposite direction. Because of the changes in the ground-state population caused by the pump beam, subtraction of the intensity signals from the two probe beams...

Speech coding based on adaptive mel-cepstral analysis

In this paper, we propose an ADPCM coder which uses a backward adaptive predictor based on the adap tive mel-cepstral analysis. The spectrum represented by the mel-cepstral coefficients has frequency resolution similar to that of the human ear which has high resolution at low frequencies. In the coder, since the transfer functions of noise shaping and postflltering are also defined through the ...

Direct and quantitative photothermal absorption spectroscopy of individual particulates

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Risk analysis based on IT Baseline Protection