2010 5th International Confernce on Ultrawideband and Ultrashort Impulse Signals最新文献

The analyses of process of generation and resonance scattering of waves on cubically polarisable layered structure 三次极化层状结构上波的产生过程及共振散射分析

2010 5th International Confernce on Ultrawideband and Ultrashort Impulse Signals Pub Date : 2010-10-25 DOI: 10.1109/UWBUSIS.2010.5609094

L. Angermann, V. Yatsyk, M. V. Yatsyk

引用次数: 0

Effects of UWB and chaotic signals on selected oscillators 超宽带和混沌信号对选定振荡器的影响

2010 5th International Confernce on Ultrawideband and Ultrashort Impulse Signals Pub Date : 2010-10-25 DOI: 10.1109/UWBUSIS.2010.5609107

C. Ropiak, R. Gardner

{"title":"Effects of UWB and chaotic signals on selected oscillators","authors":"C. Ropiak, R. Gardner","doi":"10.1109/UWBUSIS.2010.5609107","DOIUrl":"https://doi.org/10.1109/UWBUSIS.2010.5609107","url":null,"abstract":"Engineers who work on survivability of complex infrastructure targets to high-power microwave illumination are careful to understand possible instabilities that can be forced by the threat illumination. Transition to chaos is one indicator of such instability. Engineers who design infrastructure systems are careful to consider the stability of the systems under normal operation, but do not normally consider external threats or stimulants that may contribute to the instability. Stoudt, Gardner, and Kohlberg [1–3] show examples of simple electronic systems that go unstable through a combination of pulsed field illumination and misdirected energy from a system power supply. In this paper, we will examine the effects on simple selected oscillators of multi-frequency (chaotic in that the center frequency jumps abruptly from frequency to frequency) and ultra wideband signals. The first case study is based on the Chua Circuit, which is very simple, but known to easily exhibit chaotic behavior. The Chua circuit can be described using only three nonlinear differential equations, so is near the minimum requirements for chaos. This study will use Mathematica© scripts to compare the Chua circuit results to that of a simple oscillator then add complexity to the target circuit so that it is clear where instabilities can be found and exploited.","PeriodicalId":124478,"journal":{"name":"2010 5th International Confernce on Ultrawideband and Ultrashort Impulse Signals","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126111177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Electromagnetic waves radiation by thin vibrators with asymmetrical surface impedance 具有非对称表面阻抗的薄振动器的电磁波辐射

2010 5th International Confernce on Ultrawideband and Ultrashort Impulse Signals Pub Date : 2010-10-25 DOI: 10.1109/UWBUSIS.2010.5609138

M. Nesterenko, V. Dakhov, V. Katrich, S. Berdnik, S. Pshenichnaya

引用次数: 0

Spectrum control in open resonators: Time-domain simulation 开式谐振器的频谱控制:时域仿真

2010 5th International Confernce on Ultrawideband and Ultrashort Impulse Signals Pub Date : 2010-10-25 DOI: 10.1109/UWBUSIS.2010.5609167

O. Shafalyuk, Y. Sirenko, L. Velychko

引用次数: 0

High speed and efficient selectively sensitive photodetectors 高速、高效的选择性敏感光电探测器

2010 5th International Confernce on Ultrawideband and Ultrashort Impulse Signals Pub Date : 2010-10-25 DOI: 10.1109/UWBUSIS.2010.5609137

S. Collin, F. Pardo, S. Averin, N. Bardou, J. Pelouard

引用次数: 0

New Kravchenko transforms and digital UWB signal processing 新型Kravchenko变换和数字UWB信号处理

2010 5th International Confernce on Ultrawideband and Ultrashort Impulse Signals Pub Date : 2010-10-25 DOI: 10.1109/UWBUSIS.2010.5609090

V. Kravchenko, D. Churikov

引用次数: 0

Atomic distributions in SAR problems SAR问题中的原子分布

2010 5th International Confernce on Ultrawideband and Ultrashort Impulse Signals Pub Date : 2010-10-25 DOI: 10.1109/UWBUSIS.2010.5609095

V. Kravchenko, D. Churikov

引用次数: 0

Hilbert transform application to the impulse signal processing 希尔伯特变换在脉冲信号处理中的应用

2010 5th International Confernce on Ultrawideband and Ultrashort Impulse Signals Pub Date : 2010-10-25 DOI: 10.1109/UWBUSIS.2010.5609110

D. Batrakov, D. Golovin, A. A. Simachev, A. Batrakova

引用次数: 20

Improvement of characteristics of UWB double ridged horn antennas 超宽带双脊喇叭天线特性的改进

2010 5th International Confernce on Ultrawideband and Ultrashort Impulse Signals Pub Date : 2010-10-25 DOI: 10.1109/UWBUSIS.2010.5609086

F. Dubrovka, A. J. Sushko

引用次数: 13

Evolutionary equations for electromagnetic fields in unbounded space filled with layered inhomogeneous nonlinear transient medium with losses 含层状非均匀非线性瞬态介质的无界空间电磁场演化方程

2010 5th International Confernce on Ultrawideband and Ultrashort Impulse Signals Pub Date : 2010-10-25 DOI: 10.1109/UWBUSIS.2010.5609109

O. Dumin, O. Tretyakov, V. Katrich, O. Dumina, M. Nesterenko, V. I. Kholodov

{"title":"Evolutionary equations for electromagnetic fields in unbounded space filled with layered inhomogeneous nonlinear transient medium with losses","authors":"O. Dumin, O. Tretyakov, V. Katrich, O. Dumina, M. Nesterenko, V. I. Kholodov","doi":"10.1109/UWBUSIS.2010.5609109","DOIUrl":"https://doi.org/10.1109/UWBUSIS.2010.5609109","url":null,"abstract":"The transformation of Maxwell equations into the set of evolutionary equations is carried out for the case of arbitrary electrodynamic problem in unbounded space filled with layered inhomogeneous nonlinear transient medium with losses. The inhomogeneity of medium is permitted in longitudinal direction only. After elimination of longitudinal components of electromagnetic field the initial problem is converted into two matrix problems. It is proved that the matrix operators are self-adjoint. Eigen functions and eigen numbers of the operators are found. Using the operators to Maxwell equations is the projection of initial equation set into the modal basis in transversal plane. The completeness of the basis is proved by means of Weyl theorem about orthogonal splitting of Hilbert space. As a result, the evolutionary equation set is obtained. The procedure essentially simplifies the solving of the initial nonlinear transient problem because the three-dimensional problem is converted into the problem for one-dimensional evolutionary equations.","PeriodicalId":124478,"journal":{"name":"2010 5th International Confernce on Ultrawideband and Ultrashort Impulse Signals","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134509787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1