本文選題：目標(biāo)模擬系統(tǒng) + 切換PID�。� 參考：《哈爾濱工業(yè)大學(xué)》2016年碩士論文

【摘要】：系統(tǒng)仿真技術(shù)貫穿于航天及國防工業(yè)領(lǐng)域設(shè)備研發(fā)與調(diào)試的整個(gè)過程。本文設(shè)計(jì)的目標(biāo)模擬系統(tǒng)由靶標(biāo)溫控系統(tǒng)和目標(biāo)運(yùn)動(dòng)系統(tǒng)兩部分構(gòu)成,能夠?qū)︼w行器制導(dǎo)系統(tǒng)識(shí)別、跟蹤能力進(jìn)行性能測試與評估。應(yīng)用目標(biāo)模擬系統(tǒng)進(jìn)行制導(dǎo)仿真試驗(yàn)節(jié)省經(jīng)費(fèi)的同時(shí),能夠測試系統(tǒng)在不同環(huán)境條件下的性能,然而目標(biāo)模擬系統(tǒng)的精度直接關(guān)系到被測設(shè)備的可靠性和結(jié)果的準(zhǔn)確性。因此本文在總結(jié)前人工作基礎(chǔ)之上,針對目標(biāo)模擬系統(tǒng),改進(jìn)控制算法的同時(shí),深入分析了誤差來源,并對系統(tǒng)的誤差進(jìn)行補(bǔ)償,從而保證目標(biāo)模擬系統(tǒng)仿真結(jié)果具有更高的準(zhǔn)確性。文章首先系統(tǒng)地分析和總結(jié)了半實(shí)物仿真這一領(lǐng)域的研究現(xiàn)狀及成果,指出了現(xiàn)存控制策略的局限性,并分別給出了靶標(biāo)溫控系統(tǒng)和目標(biāo)運(yùn)動(dòng)系統(tǒng)的控制方案設(shè)計(jì)和控制算法改進(jìn),通過搭建MATLAB Simulink程序進(jìn)行仿真,獲得的仿真結(jié)果驗(yàn)證了算法的可行性。然后文章分析了目標(biāo)模擬系統(tǒng)精度的影響因素,采用紅外熱像儀對靶標(biāo)表面溫度進(jìn)行校準(zhǔn),通過基于坐標(biāo)變換的運(yùn)動(dòng)機(jī)構(gòu)空間位置誤差測量法對目標(biāo)運(yùn)動(dòng)系統(tǒng)進(jìn)行校準(zhǔn);然后對靶標(biāo)溫控系統(tǒng)和運(yùn)動(dòng)控制系統(tǒng)分別給出了基于遺傳算法的Wavelet網(wǎng)絡(luò)溫度誤差補(bǔ)償和基于改進(jìn)BP神經(jīng)網(wǎng)絡(luò)的空間位置誤差補(bǔ)償方案;實(shí)驗(yàn)結(jié)果顯示補(bǔ)償后的系統(tǒng)控制精度得到明顯提高。本文最后搭建了目標(biāo)模擬系統(tǒng)上位機(jī)應(yīng)用軟件,論述了上位機(jī)應(yīng)用軟件優(yōu)化設(shè)計(jì)中的模塊化設(shè)計(jì)思想、高精度定時(shí)方法等關(guān)鍵性問題;利用上位機(jī)軟件和測試軟件分別對系統(tǒng)進(jìn)行溫度控制、同步運(yùn)行、正弦響應(yīng)和綜合運(yùn)動(dòng)軌跡的測試,對實(shí)驗(yàn)結(jié)果進(jìn)行分析顯示,系統(tǒng)各項(xiàng)性能指標(biāo)均滿足技術(shù)指標(biāo)要求。
[Abstract]:The system simulation technology runs through the whole process of equipment development and debugging in the field of aerospace and national defense industry. The target simulation system designed in this paper is composed of target temperature control system and target motion system. It can test and evaluate the performance of aircraft guidance system identification and tracking capability. The application of the target simulation system to the guidance simulation test can save money and at the same time can test the performance of the system under different environmental conditions. However, the accuracy of the target simulation system is directly related to the reliability of the equipment under test and the accuracy of the results. On the basis of summarizing the previous work, this paper improves the control algorithm for the target simulation system, analyzes the error source deeply, and compensates the error of the system. In order to ensure the target simulation system simulation results have a higher accuracy. Firstly, this paper systematically analyzes and summarizes the research status and achievements in the field of hardware-in-the-loop simulation, and points out the limitations of existing control strategies. The control scheme design and control algorithm improvement of target temperature control system and target motion system are given respectively. The simulation results obtained by MATLAB Simulink program verify the feasibility of the algorithm. Then the paper analyzes the factors that affect the precision of the target simulation system, uses infrared thermal imager to calibrate the surface temperature of the target, and calibrates the target moving system by measuring the spatial position error of the moving mechanism based on coordinate transformation. Then the temperature control system of target and the motion control system are given respectively based on genetic algorithm Wavelet network temperature error compensation and improved BP neural network space position error compensation scheme. The experimental results show that the control accuracy of the compensated system is improved obviously. At the end of this paper, the application software of the upper computer in the target simulation system is built, and the key problems such as the modular design idea and the high precision timing method in the optimization design of the upper computer application software are discussed. The temperature control, synchronous operation, sinusoidal response and synthetic motion track are tested by the upper computer software and the test software respectively. The experimental results show that the performance of the system meets the requirements of the technical indicators.
【學(xué)位授予單位】：哈爾濱工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：V448;V411.8
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本文編號(hào)：1776890