提出一种结合了信源速率控制的自适应带宽预留模型，给出了模型的数值分析方法．实验表明，该模型在一定程度上解决了高速网络中大突发信源下的带宽预留问题．与原方案相比，该模型可有效地提高系统性能，降低信元丢失概率． An adaptive bandwidth reservation model combined with source rate control is proposed and the numerical analysis method of the model is given. Experiments show that this model solves the problem of bandwidth reservation under large burst source in high speed network to a certain extent. Compared with the original scheme, this model can effectively improve the system performance and reduce the probability of cell loss.