本文選題：空降單元 + 不確定性��； 參考：《西南交通大學(xué)》2017年碩士論文

【摘要】：精確空降是指確�？战等藛T或者空降物盡可能地降落到目標(biāo)區(qū)域內(nèi),該目標(biāo)區(qū)域是以目標(biāo)點(diǎn)為中心、既定的空投精度為半徑的圓形范圍�？战祵�(duì)天氣和地面條件有著很高的要求,風(fēng)速、能見(jiàn)度等對(duì)空降也會(huì)產(chǎn)生很大的影響。一般情況下,空降兵在短暫的空降時(shí)間內(nèi)基本依靠自身來(lái)判斷所處的高度等數(shù)據(jù),但在能見(jiàn)度低或夜間環(huán)境下,空降兵對(duì)這些重要數(shù)據(jù)的判斷會(huì)變得非常困難,這也將影響空降人員的安全以及降落點(diǎn)的精度,導(dǎo)致有效戰(zhàn)斗力無(wú)法快速集結(jié)形成。為此本文深入研究空降單元的降落過(guò)程,發(fā)現(xiàn)該過(guò)程有著很多的不確定性,受到風(fēng)速等諸多因素的影響和干擾。而模糊控制能夠?qū)_模型難以建立的復(fù)雜對(duì)象實(shí)現(xiàn)有效控制,對(duì)參數(shù)的變化不敏感,具有強(qiáng)魯棒性,適合解決時(shí)變、非線性等傳統(tǒng)方法難以有效解決的復(fù)雜系統(tǒng)控制問(wèn)題,因此基于模糊控制策略的構(gòu)架,對(duì)空降單元進(jìn)行控制。本文建立空降單元運(yùn)動(dòng)過(guò)程的Simulink模型,對(duì)控制對(duì)象進(jìn)行模糊化,設(shè)計(jì)出模糊控制器的隸屬函數(shù)、模糊規(guī)則等,反復(fù)驗(yàn)證得到控制效果較好的模糊控制器,并編寫出C語(yǔ)言文件驗(yàn)證該控制算法�；谀：刂破鞑呗�,分析空降單元的運(yùn)動(dòng)情況,比較有無(wú)控制器的降落精度,并進(jìn)行多工況的討論,推導(dǎo)出該控制器作用下的邊界條件。其結(jié)果表明,在模糊控制器的作用下,存在諸多不確定性、難以建立精確模型的控制對(duì)象能夠具有良好的抗干擾能力,使空降單元能夠能見(jiàn)度低或夜間環(huán)境下進(jìn)行作業(yè),并擁有良好的降落精度。
[Abstract]:The exact airborne is to ensure that the airborne personnel or airborne objects fall into the target area as much as possible. The target area is the center of the target and the circular range of the air drop precision is a radius. The air drop has a high requirement for the weather and ground conditions, and the wind speed and visibility will also have a great influence on the airborne. The airborne troops basically rely on themselves to judge the height and other data in the short flight time, but in the low visibility or night environment, the judgment of the airborne soldiers to these important data will become very difficult. This will also affect the safety of the airborne personnel and the precision of the landing point, which leads to the failure of the effective fighting capacity to quickly gather. In this paper, the landing process of the airborne unit is deeply studied. It is found that the process has many uncertainties and is influenced and disturbed by many factors such as wind speed, and the fuzzy control can effectively control the complex objects which are difficult to set up by the exact model. It is not sensitive to the change of the parameters, and has strong robustness. It is suitable for solving time-varying, nonlinear transmission. It is difficult to solve the complex system control problem which is difficult to solve effectively. Therefore, based on the framework of the fuzzy control strategy, the airborne unit is controlled. In this paper, the Simulink model of the motion process of the airborne unit is set up, the control object is fuzzed, the membership function of the fuzzy controller, the fuzzy rules are designed, and the control effect is proved repeatedly. A good fuzzy controller, and a C language file is compiled to verify the control algorithm. Based on the fuzzy controller strategy, the motion of the airborne unit is analyzed, the landing precision of the controller is compared, and the multiple working conditions are discussed, and the boundary conditions under the controller are derived. The results show that, under the action of the fuzzy controller, there are various factors. With many uncertainties, the control objects which are difficult to establish an accurate model can have good anti-interference ability, make the airborne unit have low visibility or work in the night environment, and have good landing precision.
【學(xué)位授予單位】：西南交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：V244.21;TP273.4

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本文編號(hào)：2052798