利用自相关的方法,从理论上仿真计算了高斯型光谱、不对称光谱、平坦滤波光谱和带纹波的高斯型光谱等各种谱形的宽谱光源的时间相干性。对各种光谱的相干特性加以分析,得出结论:光谱的不对称性将对低级干涉条纹产生明显的影响,而纹波将显著增加光源的相干时间,这两种特性的光源都将对光纤陀螺的性能产生一定的影响。 Using the method of autocorrelation, the time coherence of wide spectrum light sources with various spectral shapes, such as Gaussian spectrum, asymmetric spectrum, flat filter spectrum and ripple Gaussian spectrum, is simulated theoretically. The analysis of the coherence properties of various spectra leads to the conclusion that the asymmetry of the spectrum will have a significant effect on the low-level interference fringes and the ripple will significantly increase the coherence time of the light source, both of which will affect the fiber The performance of the gyro has a certain impact.