The invention discloses a spectrum calibration method and system based on phase information of interference spectrum. In the sweep of optical coherence tomography in interferometer Maher Ceng De interferometer spectrum signal by Maher Ceng De, in the computer digital Hilbert transformation based on the wrapped phase solution of Maher Ceng De interferometer interference spectral signal, the phase unwrapping is linear with the wave swept source, using the non equigap the phase distribution of optical coherence tomography signal phase interpolation, by optical coherence tomography in wavenumber space distribution of signal sampling points in image reconstruction algorithm based on fast Fu Liye transform. All the collected sample point interpolation using the invention greatly improves the interpolation accuracy, thereby improving the reconstruction signal-to-noise ratio can be obtained, the actual axial resolution is close to the ideal resolution, and the algorithm is simple and can realize the calibration data processing and real-time image reconstruction, high sensitivity.
【技术实现步骤摘要】
【技术保护点】
1.一种基于干涉光谱相位信息的光谱标定方法,其特征在于:在扫频光学相干层析成像系统中,利用马赫曾德干涉仪产生的马赫曾德干涉仪干涉光谱信号的光谱相位,得到等波数间隔分布的光学相干层析信号采样点;该方法的具体步骤如下:1)在扫频光学相干层析成像系统中,设置马赫曾德干涉仪,将扫频光源发出的光分出一部分进入马赫曾德干涉仪,调节马赫曾德干涉仪中两臂的光程差,产生具有一定光程差的干涉光谱信号;2)通过数据采集卡同步探测马赫曾德干涉仪的干涉光谱信号和扫频光学相干层析系统干涉光谱信号,传输到计算机内存中进行数据处理;3)通过对马赫曾德干涉仪干涉光谱信号进行数字希尔伯特变换,得到与扫频光源输 ...
【技术特征摘要】
【专利技术属性】
技术研发人员:丁志华,吴彤,王川,王玲,陈明惠,王保勇,陶渊浩,
申请(专利权)人:浙江大学,
类型:发明
国别省市:86
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