Estimation of Normalized Noise Power Spectrum of Infrared Imaging System with Polynomial Fitting and MATLAB
利用多项式拟合和MATLAB估算红外成像系统的归一化噪声功率谱

The normalized noise power spectrum is a function that appears in the definition formula for the signal-to-noise ratio of an infrared imaging system. It is seldom mentioned that how to solve or obtain the detailed expression of this function in references. A practical method for the estimation of normalized noise power spectrum of an infrared imaging system is presented. It is based on numerical approximation and can be implemented with the polynomial fitting function and MATLAB. The method is simple and easy to use.