首页> 外文期刊>Applied optics >Phase unwrapping through demodulation by use of the regularized phase-tracking technique
【24h】

Phase unwrapping through demodulation by use of the regularized phase-tracking technique

机译:使用正则相位跟踪技术通过解调进行相位展开

获取原文
获取原文并翻译 | 示例
           

摘要

Most interferogram demodulation techniques give the detected phase wrapped owing to the arctangent function involved in the final step of the demodulation process. To obtain a continuous detected phase, an unwrapping process must be performed. Here we propose a phase-unwrapping technique based on a regularized phase-tracking (RPT) system. Phase unwrapping is achieved in two steps. First, we obtain two phase-shifted fringe patterns from the demodulated wrapped phase (the sine and the cosine), then demodulate them by using the RPT technique. In the RPT technique the unwrapping process is achieved simultaneously with the demodulation process so that the final goal of unwrapping is therefore achieved. The RPT method for unwrapping the phase is compared with the technique of least-squares integration of wrapped phase differences to outline the substantial noise robustness of the RPT technique.
机译:大多数干涉图解调技术都归因于解调过程最后一步中所包含的反正切函数,从而使检测到的相位被包裹。为了获得连续的检测阶段,必须执行展开过程。在这里,我们提出一种基于正则化相位跟踪(RPT)系统的相位展开技术。分两阶段实现相位展开。首先,我们从解调后的包裹相位(正弦和余弦)中获得两个相移条纹图案,然后使用RPT技术对其进行解调。在RPT技术中,解包过程与解调过程同时实现,因此达到了解包的最终目标。将用于展开相位的RPT方法与所包裹的相位差的最小二乘积分技术进行比较,以概述RPT技术的实质噪声鲁棒性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号