Noise filtering for MoiréFringe signals based on variable step size adaptive neural network algorithm

Meng-jun Lv; Qi Guo; Chun-liang Zhang; Yang Meng

doi:10.1117/12.884772

19 October 2010 Noise filtering for MoireFringe signals based on variable step size adaptive neural network algorithm

Meng-jun Lv, Qi Guo, Chun-liang Zhang, Yang Meng

Proceedings Volume 7656, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment; 76567L (2010) https://doi.org/10.1117/12.884772
Event: 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies, 2010, Dalian, China

Abstract

An adaptive filtering algorithm based on neural network is used to restrain noises of MoiréFringe signals. How to realize this algorithm and its efficiency are studied followed. After analyzing the noises sources, the reason of adopting this method is discussed. The realization of the algorithm and how to adjust the step size are made out. We subdivide the signals filtered by way of tangent later. Based on comparing the characteristics of the original and the created signals, it is showed that the subdivision precision is improved. When we subdivide circular grating MoiréFringe to 512 times by using this algorithm, the maximum error is 1.236" in one individual pulse. The effect of this algorithm is better than routine filtering methods because it has wide frequency range in improving the MoiréFringe signals quality and excellent data preparation for subdivision.

Citation Download Citation

Meng-jun Lv, Qi Guo, Chun-liang Zhang, and Yang Meng "Noise filtering for MoireFringe signals based on variable step size adaptive neural network algorithm", Proc. SPIE 7656, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 76567L (19 October 2010); https://doi.org/10.1117/12.884772

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KEYWORDS

Electronic filtering

Digital filtering

Neural networks

Interference (communication)

Evolutionary algorithms

Optical filters

Nonlinear filtering

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