ISSN:0272-6343    

DOI:10.1080/02726348608915196

出版商:Taylor & Francis Group    

年代:1986

数据来源: Taylor

摘要:

This paper defines the problems associated with applying graph theory to interaction sequence diagrams used in electromagnetic topology. Because few applications have been developed, the optimal labeling scheme has yet to emerge. As a result, operations on the graph are difficult to record concisely. This paper contains criteria to guide the design of labeling schemes. Some specific schemes are presented and illustrated for a sample topology, and satisfaction of the criteria is discussed.

ISSN:0272-6343    

DOI:10.1080/02726348608915197

出版商:Taylor & Francis Group    

年代:1986

数据来源: Taylor

摘要:

Scattering matrices play an important role in transmission-line network, theory and in electromagnetic topology. Norms of such matrices are used in bounding system response. Using power considerations, bounds for the 2-norm of such matrices can be found. Appropriate constraints on the normalizing admittance (impedance) matrix for the N waves defining the scattering matrix are made. A renormalizing procedure is defined for the N-wave variables and scattering matrix based on a real-power condition. For use with electromagnetic topology, a most significant result concerns the minimization of the norm of the scattering matrix leading to a choice of a real conductance matrix times the identity matrix as the normalizing admittance matrix.

ISSN:0272-6343    

DOI:10.1080/02726348608915198

出版商:Taylor & Francis Group    

年代:1986

数据来源: Taylor

摘要:

Scattering matrices of subshields and their norms have been used to relate the internal signals of an enclosed volume to an electromagnetic source environment. Both the line and aperture penetrations are included in the scattering matrix formulation. Experimental and analytical methods are proposed for the determination of the elements of the scattering matrices corresponding to these penetrations. These methods can, in turn, be used to analyze the overall shielding performance and to allocate the subshield electromagnetic hardening requirements of a system. Limitations and assumptions in using this electromagnetic topology technique are also addressed.

ISSN:0272-6343    

DOI:10.1080/02726348608915199

出版商:Taylor & Francis Group    

年代:1986

数据来源: Taylor

摘要:

The use of shield topology Co partition large systems into tractable pieces is discussed. The interactions of externally generated transients with large systems are discussed from the aspect of the numbers of operations that must be considered. The segments of interaction associated with multiple shield imperfections, multiple levels of shields, system states, and abnormal modes lead to enormous numbers of analytical operations that must be performed to evaluate a family of responses. Practical reduction in this number, by invoking the principle of effectively impervious shields, is described.

ISSN:0272-6343    

DOI:10.1080/02726348608915200

出版商:Taylor & Francis Group    

年代:1986

数据来源: Taylor

摘要:

An apparent difficulty in developing bounds for transmission line systems is that lossy transmission lines have distortion. Three problems are presented for multiwire transmission lines that provide some insight into the possible bounding procedures and detail requirements for such line systems. This paper examines one of the constraints that has been used in the development of bounds, particularly upper bounds, for electromagnetic (EM) coupling and interaction problems. In addition, it discusses the modeling of multiconductor lines for bounding purposes.

ISSN:0272-6343    

DOI:10.1080/02726348608915201

出版商:Taylor & Francis Group    

年代:1986

数据来源: Taylor

摘要:

This paper develops the architecture for an expert system for use in the EMP hardening of complicated systems, such as aircraft and ships. The best form for the topology knowledge base is one that mimics the topology data base: graphic. A specific graph model is explored as a candidate data base structure, and examples of the use of this data base are shown.

ISSN:0272-6343    

DOI:10.1080/02726348608915202

出版商:Taylor & Francis Group    

年代:1986

数据来源: Taylor

摘要:

Much of the work described in this special issue refers to earlier work first published in the Note series by the Air Force Weapons Laboratory. Where appropriate, Interaction Notes and Mathematics Notes have been included in this bibliography. Although generally not available in the open literature, Notes may be requested from the Air Force Weapons Laboratory/NTAAB, Kirtland Air Force Base, New Mexico 87117.

ISSN:0272-6343    

DOI:10.1080/02726348608915203

出版商:Taylor & Francis Group    

年代:1986

数据来源: Taylor