为了寻找一种更好的FBG(光纤布拉格光栅)中心波长检测的寻峰算法，采用LabVIEW技术和MATLAB技术完成了FBG解调系统中9种寻峰算法的编写和调试，并对各种算法的参数及其优劣进行了分析比较。通过对仿真信号及实测FBG信号的误差分析，结合实验研究和算法仿真，给出了算法误差及相关影响因素。结果表明，最佳寻峰算法为高斯拟合法。

In order to find a better peak-search algorithm for the center wavelength detection in Fiber Bragg Grating (FBG), the compilation and debugging of 9 peak-search algorithms for FBG demodulation systems are completed by using the LabVIEW technology and MATLAB and their parameters and advantages and disadvantages are analyzed and compared. On the basis of error analysis of the simulated and measured FBG signals and in connection with the experimental study and algorithm simulation, the algorithm errors and the related influencing factors are given. The results show that the optimal peak-search algorithm is the Gaussian fitting algorithm.