The method, which is not only simpler and faster that the others, but also has high resolution, and remains the features of noise and keeps the baseline immune to noise can be widely applied in FFTS.

• 该方法比双边干涉图法具有较高的光谱分辨率，光谱的基线并不会因噪声而升高，且比卷积法计算简单、速度快、实时性好，可广泛应用到FFTS中。