为了实现烟幕对激光制导**有效的干扰，采用数值计算的方法，以布格－朗伯定律为数学基础，应用Vander Hulst近似计算方法，推导出了不同烟幕微粒参量对不同入射激光的干扰效果。数值计算结果表明，针对不同的激光波长，存在一个最佳的烟幕微粒参量，使对激光的干扰效果达到最佳。该研究对利用烟幕对激光制导**实施有效干扰及干扰效果评估有重要的参考价值。

By means of the approximate Vander Hulst numeration method,based on Bouguer-Lamber law,the effect of the smoke screens with different particles on the interference of different wavelength lasers was calculated. Numeric simulation indicated there was an optimum smoke particle parameter for a certain laser wavelength in order to obtain the best laser interference results. The study is valuable for both the evaluation and efficient interference on laser guidance weapon.