介绍了光电成像系统的噪声,运用功率谱分析方法推导了插值技术对噪声的影响。插值技术使时间噪声的功率谱变大,使固定模式噪声功率谱的谱值出现再分配,引起图像质量的改善。用计算机进行了模拟实验。 The noise of electro-optical imaging system is introduced and the influence of interpolation technique on noise is deduced by power spectral analysis. The interpolation technique makes the power spectrum of time noise larger, redistributes the spectrum values ​​of the fixed mode noise power spectrum, and improves the image quality. Computer simulation experiments.