光学与光电技术, 2009, 7 (6): 37, 网络出版: 2009-12-30
动态干涉条纹相位提取的抗干扰算法
An Anti-Jamming Algorithm of Phase Extracting for Dynamic Interference Fringes
摘要
为减小在动态干涉条纹的相位提取中噪声带来的计数误差,研究了在希尔伯特变换相位提取的基础上,利用反正切相位跳变特性,通过软件实现可逆计数的抗干扰算法。通过模拟实验对算法的抗干扰性能进行了验证,实验结果表明:所提出的相位提取算法具有较强的抗干扰性能,在信噪比为11时,算法仍然能得到正确的结果。
Abstract
In order to reduce the error counts with high-noise in the phase extracting of dynamic interference fringes, based on the phase extracting method with Hilbert transform, an anti-jamming algorithm with reversible counting using the arctangent phase characteristic was presented. The experiment results show that the algorithm can greatly increase the anti-jamming performance of phase extracting, there is an accurate result when the signal to noise ratio equals 11.
王凤鹏, 谢晓春, 王形华, 郭金水. 动态干涉条纹相位提取的抗干扰算法[J]. 光学与光电技术, 2009, 7(6): 37. WANG Feng-peng, XIE Xiao-chun, WANG Xing-hua, GUO Jin-shui. An Anti-Jamming Algorithm of Phase Extracting for Dynamic Interference Fringes[J]. OPTICS & OPTOELECTRONIC TECHNOLOGY, 2009, 7(6): 37.