The diffusion model and numerical simulation model for chaff clouds are modeled on the assumption that the speed of air where chaff locates is a Winner random process and the mass of chaff is zero so it can trace the atmosphere speed very well.

• 摘要假定箔条所在位置处大气运动速度是一个维纳随机过程，同时在忽略箔条的质量时箔条的运动完全反应当地大气的运动，在此基础上建立箔条云团的扩散模型及数值仿真模型。