本文關(guān)鍵詞：基于HLA-RTI的AOS多點通信仿真系統(tǒng)研究　出處：《沈陽理工大學》2016年碩士論文　論文類型：學位論文

  更多相關(guān)文章： AOS HLA-RTI 通信仿真系統(tǒng) 抗噪聲性能

【摘要】：AOS協(xié)議靈活多樣的特點可以有效地滿足復(fù)雜空間任務(wù)需求,隨著對AOS協(xié)議研究的不斷深入,在仿真系統(tǒng)的選擇上,由于HLA-RTI可將仿真功能與底層支撐環(huán)境分離,具有開發(fā)相互獨立、便于集成和管理的特點,可以有效的對使用AOS協(xié)議處理大容量、高速率數(shù)據(jù)的流程進行仿真。因此本文利用HLA-RTI平臺,進行了基于HLA-RTI的AOS多點通信仿真系統(tǒng)的研究。主要研究內(nèi)容如下:首先,分析了CCSDS AOS系統(tǒng)協(xié)議與HLA-RTI的體系結(jié)構(gòu),在此基礎(chǔ)上對AOS多點通信仿真系統(tǒng)進行了總體設(shè)計,并對仿真運行軟件MAK-RTI2.2、VRLink3.9.1、Visual C++6.0和Matlab7.0進行安裝與交互配置,并對多點通信仿真系統(tǒng)聯(lián)邦功能實現(xiàn)與節(jié)點間的Socket通信接口進行設(shè)計。其次,分析設(shè)計了通信仿真系統(tǒng)節(jié)點內(nèi)部成員功能。節(jié)點成員主要包含總控成員,數(shù)據(jù)處理成員、發(fā)送成員、接收成員和數(shù)據(jù)恢復(fù)成員�？偪爻蓡T用來控制仿真系統(tǒng)的開始。數(shù)據(jù)處理成員利用AOS協(xié)議中的封裝業(yè)務(wù)對選取的五種信源進行封裝并添加幀同步標記,以字符形式進行存儲。發(fā)送成員將封裝完成的數(shù)據(jù)進行轉(zhuǎn)換為二進制碼流,調(diào)制后發(fā)送到物理信道中進行傳輸。在傳輸過程中,傳輸數(shù)據(jù)可受到空間噪聲的干擾。接收成員對接收的數(shù)據(jù)進行解調(diào),并將二進制碼流轉(zhuǎn)換為字符形式,發(fā)送成員和接收成員實現(xiàn)通信系統(tǒng)與物理信道的對接過程,對數(shù)據(jù)進行傳輸和接收的同時,還可以模擬物理信道環(huán)境。數(shù)據(jù)恢復(fù)成員通過幀同步功能和數(shù)據(jù)恢復(fù)業(yè)務(wù)對數(shù)據(jù)進行提取,恢復(fù)出原始信源。得出的仿真結(jié)果很好的驗證了仿真系統(tǒng)各節(jié)點的功能與系統(tǒng)運行流程。最后,進行了噪聲環(huán)境下AOS多點通信仿真系統(tǒng)的整體運行,并得出仿真系統(tǒng)運行期間各個成員對數(shù)據(jù)處理的仿真結(jié)果。通過分析仿真結(jié)果,得出在不同信噪比下,通信仿真系統(tǒng)的的抗噪聲性能。
[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.
【學位授予單位】：沈陽理工大學
【學位級別】：碩士
【學位授予年份】：2016
【分類號】：TN915.04

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