本文選題：AOS + HLA-RTI��； 參考：《沈陽理工大學》2015年碩士論文

【摘要】：為了達到空間技術的發(fā)展水平,滿足航空、航天諸多的復雜任務需求,國際空間數(shù)據(jù)系統(tǒng)咨詢委員會(CCSDS)在1986年發(fā)表并擴展了高級在軌系統(tǒng)(AOS)協(xié)議。目前,AOS系統(tǒng)在航空航天技術領域尤為重要,相應的仿真技術也變得越來越先進,而HLA-RTI可以通過面向對象的方法來建立仿真系統(tǒng)模型,可以實現(xiàn)聯(lián)邦成員在仿真系統(tǒng)中的交互,能夠很好的AOS接收系統(tǒng)的仿真。本文是對基于HLA-RTI的AOS多信源鏈路層接收仿真系統(tǒng)進行研究,重點在于對幀同步模塊和虛擬信道分用與字節(jié)提取模塊進行仿真設計與實現(xiàn)。首先,給出了基于HLA-RTI的AOS多信源鏈路層接收仿真系統(tǒng)的總體設計,安裝并配置了分布式仿真運行支撐工具MAK-RTI2.2和VR-Link3.9.1,以及軟件開發(fā)工具Visual C++6.0,并給出了聯(lián)邦功能設計以及基于UDP協(xié)議下的Socket通信接口設計方法,以便在此基礎上進行仿真模塊的設計。其次,分析設計了幀同步仿真模塊。介紹了幀同步的原理,分析了漏檢現(xiàn)象和虛警現(xiàn)象,并對幀同步四種狀態(tài)轉換進行了詳細的分析,再根據(jù)AOS幀同步系統(tǒng)參數(shù)建議值,得出部分最佳同步碼型(ASM)。在此基礎之上對五種不同的信源進行幀同步的模塊設計,得到幀同步運行的仿真結果,該結果可以很好的反映出幀同步的合理性與必要性。然后,分析設計了虛擬信道分用和包提取、字節(jié)提取模塊。介紹了虛擬信道分用原理和包提取、字節(jié)提取原理,針對五種不同的信源設計出五個不同的VCID,在此基礎之上對五種不同的信源進行虛擬信道分用和包提取、字節(jié)提取的模塊設計,給出了虛擬信道分用和包提取、字節(jié)提取后的仿真結果,很好的實現(xiàn)了AOS接收系統(tǒng)的仿真。最后,對白噪聲環(huán)境下的AOS傳輸系統(tǒng)性能進行了仿真研究。利用了VC與Matlab混合編程的設計方法。并以文本信息數(shù)據(jù)為例,仿真了噪聲干擾所造成的影響,給出了文本信息數(shù)據(jù)字節(jié)出錯的仿真測試結果。
[Abstract]:In order to achieve the development level of space technology and meet the needs of many complex missions in aviation and aerospace, the International Space data system Advisory Committee (CCSDS) published and extended the Advanced in-orbit system (AOS) protocol in 1986. At present, the AOS system is particularly important in the field of aerospace technology, and the corresponding simulation technology has become more and more advanced. HLA-RTI can establish the simulation system model by object-oriented method, and realize the interaction of federates in the simulation system. Can very good AOS receiving system simulation. In this paper, the simulation system of AOS multi-source link layer based on HLA-RTI is studied. The emphasis is on the simulation design and implementation of frame synchronization module and virtual channel separation and byte extraction module. Firstly, the overall design of AOS multi-source link layer receiving simulation system based on HLA-RTI is presented. The distributed simulation running support tools MAK-RTI2.2 and VR-Link3.9.1 and the software development tool Visual C 6.0 are installed and configured. The design of federated function and socket communication interface based on UDP protocol are also given. In order to carry out the design of simulation module on this basis. Secondly, the frame synchronization simulation module is analyzed and designed. This paper introduces the principle of frame synchronization, analyzes the phenomena of missing detection and false alarm, and analyzes in detail the four state transitions of frame synchronization. Then, according to the suggested values of AOS frame synchronization system parameters, the partial optimal synchronous code type (ASM) is obtained. On this basis, the frame synchronization module of five different sources is designed, and the simulation results of frame synchronization are obtained, which can reflect the rationality and necessity of frame synchronization. Then, the virtual channel partition and packet extraction, byte extraction module are analyzed and designed. This paper introduces the principle of virtual channel separation, packet extraction and byte extraction, and designs five different VCIDs for five different sources. On this basis, the virtual channel separation and packet extraction of five different sources are carried out. The module of byte extraction is designed, and the simulation results of virtual channel and packet extraction are given, and the simulation of AOS receiving system is well realized. Finally, the performance of AOS transmission system in white noise environment is simulated. The mixed programming method of VC and Matlab is used. Taking the text information data as an example, the effect of noise interference is simulated, and the simulation test results of the error of the text information data byte are given.
【學位授予單位】：沈陽理工大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：V411.8

【參考文獻】

相關期刊論文 前1條

1 李琳;;VC++中模態(tài)對話框和非模態(tài)對話框的編程[J];電腦編程技巧與維護;2006年03期

相關碩士學位論文 前3條

1 李帥;基于AOS的幀同步與鏈路建立技術的研究[D];沈陽理工大學;2010年

2 徐小東;基于socket技術的數(shù)據(jù)交換平臺的設計與實現(xiàn)[D];上海交通大學;2006年

3 丁艷會;高級在軌系統(tǒng)綜合鏈路控制器的研究與設計[D];內(nèi)蒙古工業(yè)大學;2007年

，

本文編號：2060483