航空甚高频链路控制(AVLC)是下一代民航地空数据链甚高频数据链模式2(VDL2)的链路服务规程.为了提高AVLC重发控制效率、减少误重发,提出了基于信道估计的监督帧发送时刻自适应算法.在OPNET平台上建立了物理层、数据链路层和子网层VDL2架构;利用动态进程建模方法,建立了AVLC模型.通过对无监督帧、监督帧发送时刻静态算法和自适应算法分别建模,开展对比仿真,验证了监督帧重发控制对于提高VDL2性能的有效性和自适应算法较静态算法的优越性.实验结果表明,在宽范围的系数合理区间内,所提出的算法可有效增加吞吐量,缩小包延时,同时可增强系统稳定性. AVL is the link service protocol for the next generation Civil Aviation VHF Data Link Mode 2 (VDL2) .In order to improve the AVLC retransmission control efficiency and reduce the error retransmission, a channel estimation based on Channel Estimation Which is based on OPNET platform, establishes VDL2 architecture of physical layer, data link layer and subnet layer on the OPNET platform.Using the dynamic process modeling method, the AVLC model is established.Through the analysis of unsupervised frames, Static algorithm and adaptive algorithm are respectively modeled to carry out comparative simulation to verify the effectiveness of oversight frame retransmission control for improving the performance of VDL2 and the superiority of the adaptive algorithm over the static algorithm.The experimental results show that in a wide range of coefficient reasonable interval , The proposed algorithm can effectively increase the throughput, reduce the packet delay, while enhancing system stability.