Analog CMOS circuit design and characterization for optical coherence tomography signal processing.
other · Level V
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- Record sourced from PubMed, PMID 15605863.
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Abstract
We have developed a custom analog CMOS circuit to perform the signal processing for an optical coherence tomography imaging system. The circuit is realized in a 1.5 microm low-noise analog CMOS technology. The circuitry extracts the Doppler frequency from the signal and electrically mixes this with the original signal to provide a filtered A-scan. The circuitry was used to produce a two-dimensional image of an onion.
Medical subject headings
- Electronics, Medical
- Image Enhancement
- Signal Processing, Computer-Assisted
- Tomography, Optical Coherence