用于光学相干断层扫描信号处理的模拟互补金属氧化物半导体电路设计与特性分析

Analog CMOS circuit design and characterization for optical coherence tomography signal processing.

作者信息

Kariya Rajesh, Mathine David L, Barton Jennifer K

机构信息

Electrical and Computer Engineering Department, University of Arizona, Tucson, AZ 85721, USA.

出版信息

IEEE Trans Biomed Eng. 2004 Dec;51(12):2160-3. doi: 10.1109/TBME.2004.836479.

DOI:10.1109/TBME.2004.836479

PMID:15605863

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.

摘要

我们开发了一种定制的模拟互补金属氧化物半导体（CMOS）电路，用于执行光学相干断层扫描成像系统的信号处理。该电路采用1.5微米低噪声模拟CMOS技术实现。该电路从信号中提取多普勒频率，并将其与原始信号进行电混合，以提供滤波后的A扫描。该电路用于生成洋葱的二维图像。