面向Link16的QualNet与虚拟机信息交互接口设计与实现

Design and Implementation of Information Interactive Interface between QualNet and Virtual Machine for Link16

Link16是美国国防部采用的高速视距战术数据链,广泛应用于美国海军、联合部队和北约部队,针对其开展测试评估具有重要军事意义。通过硬件在环技术将Link16实物设备接入到仿真测试中,可有效提高测试结果的真实性和准确性。然而当测试场景需要进行实物设备组网测试时,仍会带来成本问题。为此,提出一种面向QualNet MAC层的Link16专属模型以及与之匹配的虚拟机信息交互接口。该模型可高逼真模拟Link16通信行为,实现Link16节点竞争接入、时隙划分、NPG分组等功能。并基于数据分布式服务实现了虚拟机交互接口,将运行在虚拟机的Link16设备模型接入QualNet测试场景。实验测试结果表明,所设计模型具有较高真实性和准确性且接口引入延时不超过1 ms,为大规模数据链网络测试提供一种新方法。

Link16 is a high-speed line-of-sight tactical data link adopted by the U.S.Department of Defense and is widely used in the U.S.Navy,joint forces,and NATO forces,for which testing and evaluation is of military importance.Integrating physical Link16 equipment into simulation testing through hardware-in-the-loop technology can effectively improve the realism and accuracy of test results.However,the cost issue still arises when physical equipment networking test is required in the testing scenario.Therefore,a Link16-specific model based on QualNet MAC layer and a matching virtual machine information interactive interface are proposed.This model can realistically simulate Link16 communication behavior,achieve the functions such as node competition access,time slot division,and NPG grouping.Based on data distributed services,the virtual machine and the QualNet simulation server are connected through this interface,thereby incorporating the Link16 equipment model running on the virtual machine into the QualNet testing scenario.Experimental results demonstrate that the proposed model has high realism and accuracy,and the interface introduces a delay of no more than 1 ms,providing a new method for large-scale data link network testing.