發(fā)布時(shí)間：2018-07-16 07:51

【摘要】：在研制紅外導(dǎo)引系統(tǒng)或可視系統(tǒng)的過程中，紅外目標(biāo)仿真技術(shù)可為其性能參數(shù)測(cè)試提供一個(gè)精確可控的實(shí)驗(yàn)條件，使得紅外導(dǎo)引頭的性能檢測(cè)變得更加準(zhǔn)確、可靠。紅外目標(biāo)模擬器作為目標(biāo)仿真實(shí)驗(yàn)的核心部分，可在實(shí)驗(yàn)室的條件下模擬接近真實(shí)的紅外目標(biāo)，以獲得紅外導(dǎo)引頭在不同條件下的工作情況，，因此針對(duì)性地研制相應(yīng)的紅外目標(biāo)模擬器具有至關(guān)重要的意義。 本論文針對(duì)導(dǎo)彈整體性能測(cè)試中目標(biāo)體紅外輻射強(qiáng)度及其運(yùn)動(dòng)特性的模擬需求，完成了同軸反射式和離軸反射式兩種類型的目標(biāo)模擬器光學(xué)結(jié)構(gòu)設(shè)計(jì)，并根據(jù)同軸反射式光路結(jié)構(gòu)進(jìn)行機(jī)械設(shè)計(jì)和實(shí)驗(yàn)檢測(cè)，完成了同軸紅外目標(biāo)模擬設(shè)備的研制工作。論文主要研究工作有以下幾個(gè)方面： （1）同軸反射式紅外目標(biāo)模擬器光學(xué)系統(tǒng)設(shè)計(jì)：通過對(duì)傳統(tǒng)反射式平行光管的分析，利用光學(xué)設(shè)計(jì)軟件Zemax設(shè)計(jì)了光學(xué)系統(tǒng)，并對(duì)其進(jìn)行了像質(zhì)分析和公差分析。 （2）離軸反射式紅外目標(biāo)模擬器光學(xué)系統(tǒng)設(shè)計(jì)：根據(jù)技術(shù)指標(biāo)要求確定了離軸拋物面鏡的通光口徑、離軸量和焦距等參數(shù)值，并通過Zemax軟件設(shè)計(jì)了系統(tǒng)光路結(jié)構(gòu)圖。 （3）同軸反射式紅外目標(biāo)模擬器結(jié)構(gòu)設(shè)計(jì)與裝調(diào)：根據(jù)同軸紅外目標(biāo)模擬器原理研制系統(tǒng)機(jī)械結(jié)構(gòu)，并對(duì)裝配完成的卡塞格林準(zhǔn)直光學(xué)系統(tǒng)進(jìn)行成像像質(zhì)檢測(cè)。 （4）同軸反射式紅外目標(biāo)模擬器實(shí)驗(yàn)驗(yàn)證：首先分析了系統(tǒng)出射光平行度誤差來源，然后采用五棱鏡法對(duì)系統(tǒng)出射光平行度進(jìn)行了實(shí)驗(yàn)檢測(cè)。 實(shí)驗(yàn)結(jié)果表明，該系統(tǒng)成像質(zhì)量好，具有良好的實(shí)用性，出射光平行度為8.89″，遠(yuǎn)小于1′，滿足系統(tǒng)設(shè)計(jì)要求。本論文研制的紅外目標(biāo)模擬器，可為紅外導(dǎo)引頭的角運(yùn)動(dòng)特性和紅外輻射強(qiáng)度檢測(cè)提供一個(gè)有效的技術(shù)途徑。
[Abstract]:In the process of developing infrared guidance system or visual system, infrared target simulation technology can provide an accurate and controllable experimental condition for the performance parameter test of infrared seeker, and make the performance detection of infrared seeker more accurate and reliable. As the core part of the target simulation experiment, the infrared target simulator can simulate near the real infrared target under the condition of the laboratory, in order to obtain the working condition of the infrared seeker under different conditions. So it is very important to develop the infrared target simulator. In order to simulate the infrared radiation intensity and its motion characteristics of the target in the whole missile performance test, the optical structure design of the coaxial reflector and off-axis target simulator is completed in this paper. According to the structure of the coaxial reflective optical path, the mechanical design and experimental detection are carried out, and the development of the simulation equipment for the coaxial infrared target is completed. The main research work of this paper is as follows: (1) the optical system design of the coaxial infrared target simulator: through the analysis of the traditional reflective parallel light tube, the optical system is designed by using the optical design software Zemax. The image quality analysis and tolerance analysis are carried out. (2) the optical system design of off-axis reflector infrared target simulator: according to the technical requirements, the optical parameters of off-axis parabolic mirror, such as optical aperture, off-axis amount and focal length, are determined. The optical circuit structure of the system is designed by Zemax software. (3) the structure design and installation of the coaxial infrared target simulator: according to the principle of the coaxial infrared target simulator, the mechanical structure of the system is developed. The imaging image quality of the assembled Cassegrain collimation optical system is tested. (4) the experimental verification of the coaxial reflection infrared target simulator: firstly, the error source of the system output parallelism is analyzed. Then, the parallelism of the output light of the system is tested by using the prism method. The experimental results show that the system has good imaging quality and good practicability. The parallel degree of output light is 8.89 ", which is far less than 1g, which meets the design requirements of the system. The infrared target simulator developed in this paper can provide an effective technical approach for the angular motion characteristics and infrared radiation intensity detection of infrared seeker.
【學(xué)位授予單位】：北京理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TN216

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