| 基于FPGA的单探测器偏振OCT信号解调系统设计 |
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| 引用本文： | 李海峰,江毅,陈晓冬,郁道银.基于FPGA的单探测器偏振OCT信号解调系统设计[J].现代科学仪器,2011(1):52-55. |
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| 作者姓名： | 李海峰 江毅 陈晓冬 郁道银 |
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| 作者单位： | 天津大学精密仪器与光电子工程学院/教育部光电子信息技术科学重点实验室,天津,300072 |
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| 摘 要： | 为了探测组织的双折射性质,搭建了以FPGA作为处理芯片的单探测器偏振OCT系统.FPGA利用内部RAM、乘法器、IP核和宏功能模块构建数字正交解调电路,提取偏振OCT干沙信号,获取组织的反射率信息和双折射信息.获取的数据经USH2.0接口送入计算机显示.对玻片和生物组织进行信号解调实脸,结果表明,系统能够对偏振OCT信...
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| 关 键 词： | 偏振OCT 单探浏器 FPGA 正交解调 |
FPGA-based Signal Demodulation System of Single-detector Polarization-sensitive OCT |
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| Li Haifeng,Wang Yi,Chen Xiaodong,Yu Daoyin.FPGA-based Signal Demodulation System of Single-detector Polarization-sensitive OCT[J].Modern Scientific Instruments,2011(1):52-55. |
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| Authors: | Li Haifeng Wang Yi Chen Xiaodong Yu Daoyin |
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| Affiliation: | Li Haifeng,Wang Yi,Chen Xiaodong,Yu Daoyin(College of Precision Instruments & Opto-electronic Engineering,Tianjin University,Opto-electronic Information Science and Technical Lab.MOE,Tianjin 300072,China) |
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| Abstract: | In order to achieve the birefringence properties of biological tissues,a single-detector polarization-sensitive OCT system is built,using the FPGA as main processor.FPGA extracts the envelope of digital PS-OCT interference signal and gets information of biological tissue reflectivity and birefringence by its internal digital quadrature demodulation circuit which is implemented by internal ROM,multiplier,IP core and megefunctions in FPGA.Data obtained is sent into the computer to display by USB2.0 interface.... |
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| Keywords: | PS-OCT Single-detector FPGA Quadrature demodulation |
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