کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1166690 | 1491126 | 2011 | 9 صفحه PDF | دانلود رایگان |
The output of many instruments can be modeled as a convolution of an impulse response and a series of sharp spikes. Deconvolution considers the inverse problem: estimate the input spike train from an observed (noisy) output signal. We approach this task as a linear inverse problem, solved using penalized regression. We propose the use of an L0 penalty and compare it with the more common L2 and L1 penalties. In all cases a simple and iterative weighted regression procedure can be used. The model is extended with a smooth component to handle drifting baselines. Application to three different data sets shows excellent results.
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► Deconvolution of pulse trains is performed using penalized regression.
► We propose the use of an L0 penalty and compare it with the more common L2 and L1 penalties.
► The model is extended with a smooth component to handle drifting baselines.
Journal: Analytica Chimica Acta - Volume 705, Issues 1–2, 31 October 2011, Pages 218–226