Abstract A spatial carrier fringe pattern analysis technique is proposed for the phase demodulation using the extended complex Kalman filter. A state space model is defined based on the spatial evolution model of the fringe signal in a given row or column of the fringe pattern depending on the direction of carrier fringes. Since the state space model incorporates one of the state associated with the carrier fringe frequency, its value need not be known apriori for the phase demodulation. Furthermore, the proposed method is capable of removing carrier phase contribution from the estimated phase using the carrier fringe frequency estimate. Simulation and experimental results substantiates the applicability of the proposed method.

中文翻译：

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使用扩展复卡尔曼滤波器从空间载波条纹图解调相位

摘要 针对扩展复卡尔曼滤波器的相位解调提出了一种空间载波条纹图分析技术。状态空间模型是基于条纹图案的给定行或列中的条纹信号的空间演化模型来定义的，这取决于载波条纹的方向。由于状态空间模型结合了与载波边缘频率相关的状态之一，因此对于相位解调不需要先验地知道其值。此外，所提出的方法能够使用载波边缘频率估计从估计相位中去除载波相位贡献。仿真和实验结果证实了所提出方法的适用性。