Title :
Analog CMOS circuit design and characterization for optical coherence tomography signal processing
Author :
Kariya, Rajesh ; Mathine, David L. ; Barton, Jennifer K.
Author_Institution :
Electr. & Comput. Eng. Dept., Univ. of Arizona, Tucson, AZ, USA
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 μm 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.
Keywords :
CMOS analogue integrated circuits; biomedical optical imaging; integrated circuit design; low-pass filters; medical image processing; optical tomography; Doppler frequency; analog CMOS circuit design; filtered A-scan; onion; optical coherence tomography; signal processing; two-dimensional image; Biomedical optical imaging; Biomedical signal processing; CMOS analog integrated circuits; CMOS process; Circuit synthesis; Optical filters; Optical imaging; Optical interferometry; Optical signal processing; Tomography; Biomedical imaging; CMOS analog integrated circuits; optical tomography; Electronics, Medical; Equipment Design; Equipment Failure Analysis; Image Enhancement; Reproducibility of Results; Sensitivity and Specificity; Signal Processing, Computer-Assisted; Tomography, Optical Coherence; Transistors;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
DOI :
10.1109/TBME.2004.836479
