说明：  FFT+FT连续细化傅立叶变换分析校正法 还请各位多多指教。 参考自丁康老师《离散频谱校正技术》
(FFT+ FT for Fourier transform analysis of detailed correction method is also called upon the exhibitions. Ding Kang reference from the teacher, " Discrete Spectrum Correction" )