Optimization of the multiple sampling and signal extraction in nondestructive exposures
作者： Bogna Kubik , Remi Barbier , Alain Castera , Eric Chabanat , Sylvain Ferriol
DOI: 10.1117/1.JATIS.1.3.038001
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摘要: We derive the full covariance matrix equations for proper treatment of correlations in signal fitting procedures, extending results from previous publications. The straight line fits performed with these matrices demonstrate that a significantly higher to noise is obtained when fluence exceeds 1 e−/s/pixel, particular long (several hundreds seconds) spectroscopic exposures. improvement arising particularly significant initial intercept fit at t=0, quantity which provides useful redundancy cross check quality. mode maximizes signal-to-noise ratio all ranges fluxes studied one uses frames sampled during exposure. While there no restriction on organization within groups fluences lower than co-adding should be avoided whenever this value.
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