【摘要】：空中飛行模擬試驗(yàn)機(jī)(Avionics Flying Laboratory,AFL)作為各機(jī)型航空電子系統(tǒng)及信息融合技術(shù)的驗(yàn)證平臺(tái),其研制水平是衡量一個(gè)國(guó)家航空工業(yè)發(fā)達(dá)的重要標(biāo)志,受到業(yè)界特別關(guān)注。但是如何設(shè)計(jì)AFL仿真驗(yàn)證平臺(tái)的分布式系統(tǒng)結(jié)構(gòu)極具挑戰(zhàn),尤其是將信息融合技術(shù)應(yīng)用于分布式系統(tǒng)構(gòu)型以得到更可靠的航空電子系統(tǒng)的融合驗(yàn)證信息更為艱難,因此相關(guān)研究文獻(xiàn)不多。本文針對(duì)這一難題,在研究分布式仿真體系和信息融合技術(shù)基礎(chǔ)上,對(duì)AFL進(jìn)行模型設(shè)計(jì)和仿真驗(yàn)證,完成AFL的軟件設(shè)計(jì)和實(shí)現(xiàn),并綜合評(píng)價(jià)AFL信息融合仿真驗(yàn)證平臺(tái)的可信度。論文主要工作要點(diǎn)如下:1.研究AFL信息融合策略及融合算法。由于不同傳感器其數(shù)據(jù)特性不同導(dǎo)致融合策略也不同,在對(duì)常用傳感器數(shù)據(jù)特性進(jìn)行研究的基礎(chǔ)上,研究了基于支持度矩陣的局部狀態(tài)估計(jì)融合算法和基于角度的雙門(mén)限航跡關(guān)聯(lián)與融合算法并針對(duì)本系統(tǒng)特性制訂了三種融合策略。最后通過(guò)仿真試驗(yàn)驗(yàn)證了融合策略和算法的有效性;2.研究AFL分布式信息融合系統(tǒng)設(shè)計(jì)的需求及關(guān)鍵技術(shù)。本文采用技術(shù)嫁接方式,將DIS和HLA兩種仿真體系對(duì)比分析后的改進(jìn)技術(shù)應(yīng)用于AFL信息融合仿真驗(yàn)證平臺(tái)的設(shè)計(jì),提出一種面向機(jī)載航空電子系統(tǒng)的分布式信息融合仿真系統(tǒng)架構(gòu);3.AFL信息融合仿真驗(yàn)證平臺(tái)的軟件實(shí)現(xiàn)與應(yīng)用。首先采用微軟的Visual C++6.0進(jìn)行系統(tǒng)軟件設(shè)計(jì)、采用MFC、ProEssentials技術(shù)為仿真系統(tǒng)提供可視化交互環(huán)境;然后分析被測(cè)系統(tǒng)需求,設(shè)計(jì)了三種測(cè)試案例。最后通過(guò)分析試驗(yàn)數(shù)據(jù),驗(yàn)證了該系統(tǒng)運(yùn)行良好,能夠靈活選擇被測(cè)系統(tǒng)及融合策略,具有較好的可靠性、穩(wěn)定性、擴(kuò)展性;4.綜合評(píng)估AFL信息融合仿真驗(yàn)證平臺(tái)的可信度。信息融合系統(tǒng)的仿真可信度評(píng)估包括建模和仿真的各個(gè)環(huán)節(jié)。首先建立可信度評(píng)估模型,并分析常見(jiàn)的幾種評(píng)估方法。然后先采用AHP法建立評(píng)估指標(biāo)體系、確定指標(biāo)權(quán)重,再采用相似理論綜合評(píng)估各指標(biāo)的可信度分量。最終用以評(píng)估AFL融合仿真系統(tǒng)的可信度。分析評(píng)估結(jié)果可知該融合仿真系統(tǒng)具有較高的可信度,因此論文的相關(guān)研究,對(duì)信息融合技術(shù)在AFL的研究及應(yīng)用有一定的工程參考價(jià)值。
[Abstract]:As the verification platform of avionics system and information fusion technology, (Avionics Flying Laboratory,AFL (Air Flight Simulation Test Machine) is an important symbol to measure the development of a country's aviation industry, and has been paid special attention to by the industry. However, how to design the distributed system structure of AFL simulation verification platform is very challenging, especially it is more difficult to apply the information fusion technology to the distributed system configuration to obtain more reliable fusion verification information of avionics system. Therefore, the relevant research literature is few. In this paper, based on the research of distributed simulation system and information fusion technology, the model design and simulation verification of AFL are carried out, the software design and implementation of AFL are completed, and the credibility of AFL information fusion simulation verification platform is comprehensively evaluated. The main work of this paper is as follows: 1. Research on AFL information fusion strategy and fusion algorithm. Due to the different data characteristics of different sensors, the fusion strategy is also different. Based on the research of the data characteristics of common sensors, The local state estimation fusion algorithm based on support matrix and the dual threshold path association and fusion algorithm based on angle are studied. Three fusion strategies are proposed according to the characteristics of the system. Finally, the effectiveness of the fusion strategy and algorithm is verified by simulation. 2. The requirements and key technologies of AFL distributed information fusion system design are studied. In this paper, the improved technology of DIS and HLA is applied to the design of AFL information fusion simulation platform. This paper presents a distributed information fusion simulation system architecture for airborne avionics system and the software implementation and application of 3.AFL information fusion simulation verification platform. Firstly, the system software is designed with Visual C 6.0 of Microsoft, and the visual interactive environment is provided by MFC,ProEssentials technology, and then three kinds of test cases are designed by analyzing the requirements of the system under test. Finally, through the analysis of the test data, it is proved that the system works well, and it can flexibly select the tested system and fusion strategy, which has good reliability, stability and expansibility. 4. The credibility of AFL information fusion simulation verification platform is comprehensively evaluated. The credibility evaluation of information fusion system includes modeling and simulation. Firstly, the credibility evaluation model is established, and several common evaluation methods are analyzed. Then the AHP method is used to establish the evaluation index system to determine the index weight and then the similarity theory is used to evaluate the reliability components of each index. Finally, it is used to evaluate the credibility of AFL fusion simulation system. The analysis and evaluation results show that the fusion simulation system has a high reliability, so the related research in this paper has a certain engineering reference value for the research and application of information fusion technology in AFL.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：V216.8;TP202

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