论文部分内容阅读
光纤傅里叶变换光谱仪(FFTS)干涉图的采样方式一般有两种,即单边采样方式和双边采样方式。详细介绍了在两种不同采样方式下的光谱复原技术,给出了数学表达式和计算过程,比较了两种算法的优缺点,并对单边复原算法进行了改进,提高了使用乘积法进行相位校正的效率。对研究结果进行了实验验证,用两种算法计算得到的复原谱与标准谱线进行比较,二者基本重合,证明了算法的有效性。 ,
There are generally two kinds of sampling modes of the interferometer of the optical fiber Fourier transform spectrometer (FFTS), that is, unilateral sampling mode and bilateral sampling mode. The spectral restoration technique in two different sampling modes is introduced in detail. The mathematical expressions and calculation process are given. The advantages and disadvantages of the two algorithms are compared. The unilateral recovery algorithm is improved and the product method is improved Phase correction efficiency. The experimental results are validated by experiments. The reconstructed spectra calculated by the two algorithms are compared with the standard spectral lines, and the two are basically coincident, which proves the effectiveness of the algorithm. ,