摘要
基于LabVIEW虚拟仪器开发平台,分析了功率加权算法、高斯拟合算法、高斯-多项式拟合算法、一般多项式拟合算法和高斯-非线性曲线拟合算法对原始信号寻峰,比较误差均值和标准偏差。在改变波长分辨率、窗口大小、信噪比的情况下比较各种算法误差,并进行了实验验证。理论、仿真与实验均证明高斯拟合算法为最佳算法。
Based on the platform of virtual instrument LabVIEW,this paper is to detect peaks of original signal respectively with power-weighted algorithm, Gaussian fitting algorithm, Gauss- polynomial fitting algorithm, a general polynomial fitting algorithm and Gaussian non-linear curve fitting algorithm, and compare their error means and standard deviations. Comparing the deviations with the changes of the wavelength resolution, window size, SNR, and experimental verification is carried on finally. Gaussian fitting algorithm is proved to be the best peak-detection algorithm by theory, simulation and experiment.
出处
《电测与仪表》
北大核心
2010年第2期1-4,共4页
Electrical Measurement & Instrumentation
基金
国家863计划资助项目(2006AA09Z141)
关键词
光纤布拉格光栅
解调
寻峰算法
拟合算法
LABVIEW
fiber bragg grating, demodulation, peak-detection algorithm, fitting algorithm, LabVIEW
