基于卡塞格林光學系統(tǒng)的紅外目標模擬器技術研究
發(fā)布時間：2018-07-16 07:51
【摘要】：在研制紅外導引系統(tǒng)或可視系統(tǒng)的過程中，紅外目標仿真技術可為其性能參數(shù)測試提供一個精確可控的實驗條件，使得紅外導引頭的性能檢測變得更加準確、可靠。紅外目標模擬器作為目標仿真實驗的核心部分，可在實驗室的條件下模擬接近真實的紅外目標，以獲得紅外導引頭在不同條件下的工作情況，，因此針對性地研制相應的紅外目標模擬器具有至關重要的意義。 本論文針對導彈整體性能測試中目標體紅外輻射強度及其運動特性的模擬需求，完成了同軸反射式和離軸反射式兩種類型的目標模擬器光學結構設計，并根據(jù)同軸反射式光路結構進行機械設計和實驗檢測，完成了同軸紅外目標模擬設備的研制工作。論文主要研究工作有以下幾個方面： （1）同軸反射式紅外目標模擬器光學系統(tǒng)設計：通過對傳統(tǒng)反射式平行光管的分析，利用光學設計軟件Zemax設計了光學系統(tǒng)，并對其進行了像質分析和公差分析。 （2）離軸反射式紅外目標模擬器光學系統(tǒng)設計：根據(jù)技術指標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軟件設計了系統(tǒng)光路結構圖。 （3）同軸反射式紅外目標模擬器結構設計與裝調：根據(jù)同軸紅外目標模擬器原理研制系統(tǒng)機械結構，并對裝配完成的卡塞格林準直光學系統(tǒng)進行成像像質檢測。 （4）同軸反射式紅外目標模擬器實驗驗證：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系統(tǒng)出射光平行度進行了實驗檢測。 實驗結果表明，該系統(tǒng)成像質量好，具有良好的實用性，出射光平行度為8.89″，遠小于1′，滿足系統(tǒng)設計要求。本論文研制的紅外目標模擬器，可為紅外導引頭的角運動特性和紅外輻射強度檢測提供一個有效的技術途徑。
[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.
【學位授予單位】：北京理工大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TN216
本文編號：2125736
[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.
【學位授予單位】：北京理工大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TN216
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