基于HLA-RTI的AOS多点通信仿真系统研究

发布时间：2018-01-16 20:13

本文关键词：基于HLA-RTI的AOS多点通信仿真系统研究　出处：《沈阳理工大学》2016年硕士论文　论文类型：学位论文

【摘要】：AOS协议灵活多样的特点可以有效地满足复杂空间任务需求,随着对AOS协议研究的不断深入,在仿真系统的选择上,由于HLA-RTI可将仿真功能与底层支撑环境分离,具有开发相互独立、便于集成和管理的特点,可以有效的对使用AOS协议处理大容量、高速率数据的流程进行仿真。因此本文利用HLA-RTI平台,进行了基于HLA-RTI的AOS多点通信仿真系统的研究。主要研究内容如下:首先,分析了CCSDS AOS系统协议与HLA-RTI的体系结构,在此基础上对AOS多点通信仿真系统进行了总体设计,并对仿真运行软件MAK-RTI2.2、VRLink3.9.1、Visual C++6.0和Matlab7.0进行安装与交互配置,并对多点通信仿真系统联邦功能实现与节点间的Socket通信接口进行设计。其次,分析设计了通信仿真系统节点内部成员功能。节点成员主要包含总控成员,数据处理成员、发送成员、接收成员和数据恢复成员。总控成员用来控制仿真系统的开始。数据处理成员利用AOS协议中的封装业务对选取的五种信源进行封装并添加帧同步标记,以字符形式进行存储。发送成员将封装完成的数据进行转换为二进制码流,调制后发送到物理信道中进行传输。在传输过程中,传输数据可受到空间噪声的干扰。接收成员对接收的数据进行解调,并将二进制码流转换为字符形式,发送成员和接收成员实现通信系统与物理信道的对接过程,对数据进行传输和接收的同时,还可以模拟物理信道环境。数据恢复成员通过帧同步功能和数据恢复业务对数据进行提取,恢复出原始信源。得出的仿真结果很好的验证了仿真系统各节点的功能与系统运行流程。最后,进行了噪声环境下AOS多点通信仿真系统的整体运行,并得出仿真系统运行期间各个成员对数据处理的仿真结果。通过分析仿真结果,得出在不同信噪比下,通信仿真系统的的抗噪声性能。
[Abstract]:The flexible and diverse characteristics of AOS protocol can effectively meet the needs of complex space tasks. With the deepening of the research on AOS protocol, the choice of simulation system. Because HLA-RTI can separate the simulation function from the underlying supporting environment, it has the characteristics of independent development, easy integration and management, so it can deal with large capacity of using AOS protocol effectively. High-rate data flow simulation. Therefore, this paper makes use of HLA-RTI platform, HLA-RTI based AOS multi-point communication simulation system. The main research contents are as follows: first. The architecture of CCSDS AOS system protocol and HLA-RTI is analyzed, and the overall design of AOS multipoint communication simulation system is given. The simulation software MAK-RTI2.2 VRLink3.9.1Visual C 6.0 and Matlab7.0 are installed and interactively configured. And the multi-point communication simulation system federation function realization and the node between the Socket communication interface is designed. Secondly. Analysis and design of the communication simulation system node internal member function. The node member mainly includes the general control member, the data processing member, the sending member. The receiving member and the data recovery member. The master control member is used to control the start of the simulation system. The data processing members use the encapsulation service in AOS protocol to encapsulate the selected five sources and add the frame synchronization mark. Storage in the form of characters. The sending member converts the encapsulated data into binary code stream, modulates and transmits to the physical channel for transmission. The transmitted data can be disturbed by spatial noise. The receiving member demodulates the received data and converts the binary bit stream into character form. The sending member and the receiving member realize the docking process between the communication system and the physical channel, and transmit and receive the data at the same time. It can also simulate physical channel environment. Data recovery members extract data through frame synchronization function and data recovery service. Restore the original information source. The simulation results verify the function of each node of the simulation system and the system running process. Finally, the overall operation of the AOS multi-point communication simulation system under the noise environment is carried out. By analyzing the simulation results, the anti-noise performance of the communication simulation system under different signal-to-noise ratio is obtained.
【学位授予单位】：沈阳理工大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TN915.04

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