弹道靶尾迹微波扫频干涉仪诊断系统仿真
摘要
“扫频式微波干涉仪系统”是某重大技改项目中的技术改造项目。具体要求是将所研制的扫频式微波干涉仪应用于某气动物理靶中对等离子体尾迹进行电子密度的测量。扫频式微波干涉仪系统应具有操作简单,测量方便、准确与可靠的特点。
气动物理靶中的超高速飞行物的尾迹与一般的等离子体有共性又有不同点,所以在第一章绪论里主要讲述等离子体诊断,特别是气动物理靶尾迹的诊断的重要意义。介绍了常用方法,并对闭式谐振腔和开放式谐振腔诊断系统的基本思路和原理作了介绍。综述了国内外动态,以及归纳了本文的主要工作。
第二章介绍了在无磁场条件下,微波在等离子体中传播的特性以及弹道靶等离子体尾迹的特点。较详细地介绍了微波在等离子体中传输、反射、折射和截止的理论和条件,并说明了等离子体微波测量的理论基础。
第三章介绍了微波干涉仪的常用类型、特点及原理,包括外差式干涉仪、反射式干涉仪和扫频式干涉仪,并对各种方案作了简单的比较。本章简明地介绍了干涉仪的设计思路及要注意的问题。
第四章详细地设计了气动物理靶尾迹扫频式微波干涉仪诊断系统,应用△f·τ=1的设计思想,并说明了这类干涉仪要注意的问题。 第五章详细地阐述了利用MATLAB 仿真技术进行系统仿真及相关的理论,并提出了微波干涉仪系统的仿真方法。 第六章详细地阐述了微波干涉仪系统中的Simulink 仿真技巧,同时,阐述了如何实现对仿真结果的分析等相关知识。第七章、第八章、第九章、第十章较详细地阐述了扫频干涉仪f1(t) 的幅度随△f ·ㄈ变化而变化的仿真、扫频干涉仪射频系统原理仿真、扫频干涉仪系统电子密度仿真、弹道靶等离子体离子化尾迹仿真的建模、参数设置,仿真结果分析等。通过仿真得出相关数据,验证原理的可行性,参数对系统性能的影响。 本文仿真的对象是气动物理靶尾迹扫频式微波干涉仪诊断系统,它是一种高性能的等离子体密度诊断系统,根据文献检索证实,本文是首次进行干涉仪系统的仿真,通过对该系统的实际仿真,证实该系统的设计原理正确,同时也证实了仿真的思路、方法及结果是正确的。
"The Swept Microwave Interferometer System" is a technological renovationitem in a* certain vital technological renovation project. The detailed desire is toapply the swept microwave interferometer system to a certain pneumatic physicaltarget to fulfill the electronic density measurement of the plasma wake. The system isveracity and credible, easy to manipulate and measure.
To the wake, there are general characters and differences between the ordinaryplasma and the hypervelocity flyer which is in the pneumatic physical target. So, inthe exordium of chapter 1, it explains the diagnosis of plasma, focuses on thesignificance of the projectiles ionized wake diagnosis. It introduces the usual methodand the basic thought, the principle of the closing and opening resonators diagnosissystem. It summarizes the developments at home and abroad, and the main contents ofthis thesis.
In chapter 2, it introduces, in the non-magnetic field, the characteristic of themicrowave in the plasma, and the characteristic of the plasma wake of ballistic target.It introduces the theories and conditions that the microwave transmits, reflects,refracts, and cut-offs in the plasma, it also explains the theoretic foundation about theplasma microwave measurement.
In chapter 3, it introduces the usual types, characteristic and principle of themicrowave interferometer, it compares with different types, including the heterodyneinterferometer, the reflection interferometer and the swept interferometer. In thischapter, it also introduces the designing method and some important problems of theinterferometer briefly.
In chapter 4, the swept microwave interferometer diagnosis system is designed indetail. The designing thought of "Af.r=l" is pointed out, the issues about this kind ofinterferometer us described.
In chapter 5, it expounds how to apply the MATLAB simulative technology tothe systemic simulation, describes the related theory in detail, mentions the simulativemethod to the microwave interferometer system.
In chapter 6, the Simulink simulative techniques in the
气动物理靶中的超高速飞行物的尾迹与一般的等离子体有共性又有不同点,所以在第一章绪论里主要讲述等离子体诊断,特别是气动物理靶尾迹的诊断的重要意义。介绍了常用方法,并对闭式谐振腔和开放式谐振腔诊断系统的基本思路和原理作了介绍。综述了国内外动态,以及归纳了本文的主要工作。
第二章介绍了在无磁场条件下,微波在等离子体中传播的特性以及弹道靶等离子体尾迹的特点。较详细地介绍了微波在等离子体中传输、反射、折射和截止的理论和条件,并说明了等离子体微波测量的理论基础。
第三章介绍了微波干涉仪的常用类型、特点及原理,包括外差式干涉仪、反射式干涉仪和扫频式干涉仪,并对各种方案作了简单的比较。本章简明地介绍了干涉仪的设计思路及要注意的问题。
第四章详细地设计了气动物理靶尾迹扫频式微波干涉仪诊断系统,应用△f·τ=1的设计思想,并说明了这类干涉仪要注意的问题。 第五章详细地阐述了利用MATLAB 仿真技术进行系统仿真及相关的理论,并提出了微波干涉仪系统的仿真方法。 第六章详细地阐述了微波干涉仪系统中的Simulink 仿真技巧,同时,阐述了如何实现对仿真结果的分析等相关知识。第七章、第八章、第九章、第十章较详细地阐述了扫频干涉仪f1(t) 的幅度随△f ·ㄈ变化而变化的仿真、扫频干涉仪射频系统原理仿真、扫频干涉仪系统电子密度仿真、弹道靶等离子体离子化尾迹仿真的建模、参数设置,仿真结果分析等。通过仿真得出相关数据,验证原理的可行性,参数对系统性能的影响。 本文仿真的对象是气动物理靶尾迹扫频式微波干涉仪诊断系统,它是一种高性能的等离子体密度诊断系统,根据文献检索证实,本文是首次进行干涉仪系统的仿真,通过对该系统的实际仿真,证实该系统的设计原理正确,同时也证实了仿真的思路、方法及结果是正确的。
"The Swept Microwave Interferometer System" is a technological renovationitem in a* certain vital technological renovation project. The detailed desire is toapply the swept microwave interferometer system to a certain pneumatic physicaltarget to fulfill the electronic density measurement of the plasma wake. The system isveracity and credible, easy to manipulate and measure.
To the wake, there are general characters and differences between the ordinaryplasma and the hypervelocity flyer which is in the pneumatic physical target. So, inthe exordium of chapter 1, it explains the diagnosis of plasma, focuses on thesignificance of the projectiles ionized wake diagnosis. It introduces the usual methodand the basic thought, the principle of the closing and opening resonators diagnosissystem. It summarizes the developments at home and abroad, and the main contents ofthis thesis.
In chapter 2, it introduces, in the non-magnetic field, the characteristic of themicrowave in the plasma, and the characteristic of the plasma wake of ballistic target.It introduces the theories and conditions that the microwave transmits, reflects,refracts, and cut-offs in the plasma, it also explains the theoretic foundation about theplasma microwave measurement.
In chapter 3, it introduces the usual types, characteristic and principle of themicrowave interferometer, it compares with different types, including the heterodyneinterferometer, the reflection interferometer and the swept interferometer. In thischapter, it also introduces the designing method and some important problems of theinterferometer briefly.
In chapter 4, the swept microwave interferometer diagnosis system is designed indetail. The designing thought of "Af.r=l" is pointed out, the issues about this kind ofinterferometer us described.
In chapter 5, it expounds how to apply the MATLAB simulative technology tothe systemic simulation, describes the related theory in detail, mentions the simulativemethod to the microwave interferometer system.
In chapter 6, the Simulink simulative techniques in the
引文
[1] Heald, M. A. Wharton C. B. Plasma Diagnostics with Microwaves. John Wiley& Sons Inc., New York·London·Sydney,1965
[2]Slater, J. C., Rev. Mod. Phys. 18,1946,p441
[3] Biondi, M. A., and Brown. S.C.,Phys.Rev.75,1949,p1700
[4] Labitt, M., Herlin, M.A. Application of the Resonant Cavity Method to the Measurement of Electron Densities and Collision Frequencies in the Wakes of Hypervelocity Pellets. Group 35,TECHNICAL PEPORT NO.248, 1961. OCT. 17
[5] 何昌委,刘述章. 开放式谐振腔测量弹道靶尾迹电子密度和碰撞频率理论分析与系统构想. 电子测量与仪器学报,2002 增刊p240
[6] Richard A., Haymi Kevin J. Kelley. Open Microwave Resonators for Ionized Wake Measurement. IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS VOL.AES-3, NO.2 1967 p339
[7] Chen, F. F., Etievant, C., and Mosher, D., Phys. Fluids 11,1968,p811
[8]窦文斌. 毫米波准光理论与技术. 电子工业出版社,2000
[9] Nemoto S. Nonparaxial Gaussian beams. Appl. Opt, 1991,29(13), p1940
[10] Leich, M. All Optical Tree Network for Interference-free Distance Multiplexing Electronics Letters . Volume: 31 Issue: 22 , 26 Oct 1995 ,P 1932
[11] K. P. Huber, G. Herzherg. Molecular Spectra Molecular Structure Structure. IV. Constants of Diatomic Modlecues[M],2end cd,Van Nostrand,New York,1950
[12] Okabayashi, M. and Arunasalam,V. Nucl.Fusion 17,1977, p497
[13] 刘青云,安冬海,张平. 超音速再入体远场湍流尾迹电于密度计算. 北京理工大学学报VoL.19 , NoS1, Dec,1999
[14] Kang Hongwen,Fan Meng,Wei Zhonglei. Experimental Study of Turbulent Wing-body Junction and Wake Flow. Chinese Journal of Aeronautics Vol,9 No.4 Nov.1996
[15] 宫本健郎,金尚宪. 热核聚变等离子体物理学.科学出版社,1981
[16] 孙杏凡. 等离子体及其应用. 高等教育出版社,1983
[17] Orlando Auciello, Daniel L.Flamm 编著. 等离子体诊断(第一卷放电参量和化学).电子工业出出版社1994
[18]项志遴,俞昌旋. 高温等离子体诊断技术. 上海科技技术出版社, 1982
[2]Slater, J. C., Rev. Mod. Phys. 18,1946,p441
[3] Biondi, M. A., and Brown. S.C.,Phys.Rev.75,1949,p1700
[4] Labitt, M., Herlin, M.A. Application of the Resonant Cavity Method to the Measurement of Electron Densities and Collision Frequencies in the Wakes of Hypervelocity Pellets. Group 35,TECHNICAL PEPORT NO.248, 1961. OCT. 17
[5] 何昌委,刘述章. 开放式谐振腔测量弹道靶尾迹电子密度和碰撞频率理论分析与系统构想. 电子测量与仪器学报,2002 增刊p240
[6] Richard A., Haymi Kevin J. Kelley. Open Microwave Resonators for Ionized Wake Measurement. IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS VOL.AES-3, NO.2 1967 p339
[7] Chen, F. F., Etievant, C., and Mosher, D., Phys. Fluids 11,1968,p811
[8]窦文斌. 毫米波准光理论与技术. 电子工业出版社,2000
[9] Nemoto S. Nonparaxial Gaussian beams. Appl. Opt, 1991,29(13), p1940
[10] Leich, M. All Optical Tree Network for Interference-free Distance Multiplexing Electronics Letters . Volume: 31 Issue: 22 , 26 Oct 1995 ,P 1932
[11] K. P. Huber, G. Herzherg. Molecular Spectra Molecular Structure Structure. IV. Constants of Diatomic Modlecues[M],2end cd,Van Nostrand,New York,1950
[12] Okabayashi, M. and Arunasalam,V. Nucl.Fusion 17,1977, p497
[13] 刘青云,安冬海,张平. 超音速再入体远场湍流尾迹电于密度计算. 北京理工大学学报VoL.19 , NoS1, Dec,1999
[14] Kang Hongwen,Fan Meng,Wei Zhonglei. Experimental Study of Turbulent Wing-body Junction and Wake Flow. Chinese Journal of Aeronautics Vol,9 No.4 Nov.1996
[15] 宫本健郎,金尚宪. 热核聚变等离子体物理学.科学出版社,1981
[16] 孙杏凡. 等离子体及其应用. 高等教育出版社,1983
[17] Orlando Auciello, Daniel L.Flamm 编著. 等离子体诊断(第一卷放电参量和化学).电子工业出出版社1994
[18]项志遴,俞昌旋. 高温等离子体诊断技术. 上海科技技术出版社, 1982