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Circular Regression in a Dual-Phase Lock-In Amplifier for Coherent Detection of Weak Signal
Lock-in amplification (LIA) is an effective approach for recovery of weak signal buried in noise. Determination of the input signal amplitude in a classical dual-phase LIA is based on incoherent detection which leads to a biased estimation at low signal-to-noise ratio. This article presents, for the...
| Autores principales: | , , , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
MDPI
2017
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5713186/ https://www.ncbi.nlm.nih.gov/pubmed/29135951 http://dx.doi.org/10.3390/s17112615 |