X光谱的平滑处理

Smoothed Processing of X-ray Spectrum

提出采用AR模型处理X光谱的方法。该方法将测得X光谱看作对某信号的经典谱估计,利用FFT计算原信号的自相关函数,并利用AR模型对X光谱重新估计。采用该方法处理后,光谱变得更为平滑,且提高了光谱的分辨力。实验结果证实了该方法的有效性。

X spectrum processing method based on AR model was proposed. The method looks the measured X spectrum as the classic spectrum estimation of a signal. Then using FFT calculates the signal＇s self-correlation function, and adopting AR model re-estimates the X spectrum. After processing, the spectrum becomes smoother and the resolution of the spectrum has been enhanced. The efficiency of the method has been verified by experiment result.