基于HLA-RTI的AOS多信源链路层发送仿真系统研究

发布时间：2018-05-07 00:24

本文选题：AOS + HLA-RTI　；参考：《沈阳理工大学》2015年硕士论文

【摘要】：AOS具有高灵活性和多样化等优点,已成了空间链路领域中的研究热点。随着对AOS理论研究的深入,相应的系统仿真技术也变得越来越重要。在众多的仿真技术中,由于HLA-RTI可以实现不同仿真系统间的互操作、可重用以及各成员的“即插即用”,能够很好地模拟AOS信源类型多、数据容量大、以及多层次数据处理等特点,因此在本课题中,开展了基于HLA-RTI的AOS多信源链路层发送仿真系统的研究,主要研究内容如下:首先,在分析了AOS协议书和数据处理流程的基础上,对基于HLA-RTI的AOS多信源链路层发送仿真系统进行了总体设计。该仿真系统可以传输五类信源,包括8比特小信源、16比特小信源、文本信源、图像信源和声音信源。在设计中采用了模块化思想,设计了包括总控成员、多信源封装成员、虚拟信道调度成员和附加帧同步标记(ASM)添加成员4个成员在内的仿真系统,并在两台主机上实现其功能。进一步,设计了包括VC6.0和RTI在内的软件配置方案,并给出了联邦功能设计以及通信接口设计的方法。其次,分别设计并实现了发送端各成员模块的功能。第一步,设计并实现了总控成员模块,其功能是控制整个仿真系统的开始;第二步,设计并实现了多信源封装成员模块,包括包信道复用模块和BPDU封装模块,分别对五类信源进行封装;第三步,设计并实现了虚拟信道调度成员模块,并在该模块中采用静态优先级调度算法完成调度;第四步,设计并实现了附加帧同步标记(ASM)添加成员模块,在该模块中可选用三种不同的最佳帧同步码作为ASM,以适应不同通信环境的帧同步需求。然后,在上述工作的基础上,实现了各成员模块之间的互连互通,并在调试运行之后,完成了系统仿真。仿真结果真实、准确地反应了AOS数据处理流程及相关性能。
[Abstract]:Because of its high flexibility and diversity, AOS has become a research hotspot in the field of space links. With the development of AOS theory, the corresponding system simulation technology becomes more and more important. In many simulation technologies, because HLA-RTI can realize interoperability, reuse and "plug and play" among different simulation systems, it can well simulate AOS source types and data capacity. And the characteristics of multi-level data processing, so in this paper, the research of AOS multi-source link layer transmission simulation system based on HLA-RTI is carried out. The main research contents are as follows: firstly, based on the analysis of AOS agreement and data processing flow, The overall design of AOS multi-source link layer transmission simulation system based on HLA-RTI is presented. The simulation system can transmit five kinds of sources, including 8-bit small source and 16-bit source, text source, image source and sound source. The modularization idea is adopted in the design. A simulation system is designed, which includes four members: master control member, multi-source encapsulation member, virtual channel scheduling member and additional frame synchronization tag ASM member, and its functions are realized on two hosts. Furthermore, the software configuration scheme including VC6.0 and RTI is designed, and the design method of federated function and communication interface is given. Secondly, the function of each member module on the sending side is designed and implemented separately. In the first step, the general control module is designed and implemented, the function of which is to control the beginning of the whole simulation system, and the second step is to design and implement the multi-source package member module, including the packet channel multiplexing module and the BPDU encapsulation module. In the third step, the virtual channel scheduling member module is designed and implemented, and the static priority scheduling algorithm is used to complete the scheduling in the module. An additional frame synchronization tag (ASM) adding module is designed and implemented. In this module, three different optimal frame synchronization codes can be selected as ASMs to meet the needs of frame synchronization in different communication environments. Then, on the basis of the above work, the interconnection and interworking among the member modules are realized, and after debugging and running, the system simulation is completed. The simulation results are true and accurately reflect the AOS data processing flow and related performance.
【学位授予单位】：沈阳理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：V411.8

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