复杂电磁环境复杂度度量

发布时间：2018-01-10 01:12

本文关键词：复杂电磁环境复杂度度量　出处：《电子科技大学》2016年硕士论文　论文类型：学位论文

【摘要】：随着电磁环境信号数量增加,电磁环境越来越复杂,对电子系统的影响也越来越大,复杂电磁环境问题也开始逐步得到人们的重视。电磁环境中的电磁信号可通过多种途径进入电子信息系统,如果各类干扰信号进入了系统,而系统又无法有效地消除干扰信号,则干扰信号必将影响电子信息系统的正常工作。如今,许多重大安全事故和军事训练中暴露出的问题清晰无误地表明,复杂电磁环境对电子信息系统的严重影响已经扩大为对社会发展与公共安全、国防与军队建设的严重威胁。针对复杂电磁环境难以评定,尤其是电磁环境与电子信息系统相互影响、紧密耦合情况下电磁环境复杂性难以度量的问题,开展电磁环境复杂性度量方法的研究,提出度量准则、度量指标和度量方法,为复杂电磁环境评定和模拟提供方法依据,是十分必要的。对于复杂电磁环境复杂度的评估研究,是其他研究的基础。对于复杂电磁环境复杂度的研究,需要从复杂性科学和复杂系统的研究成果人手,找到复杂电磁环境复杂性的来源和本质特征,建立一套符合复杂性科学大框架的度量方式。本文从复杂性科学的角度出发,探讨复杂电磁环境的表现、特征以及对复杂电磁环境进行复杂度度量的方法。本文包括三部分内容首先描述了复杂电磁环境模型与复杂度度量方法,从建立复杂电磁环境模型人手,分别建立复杂电磁环境的信号模型和网络拓扑模型,在信号模型中将给出电磁环境基本参量间正交性的证明,进一步给出信号模型七个维度正交性证明,在网络拓扑模型中将建立适用于复杂电磁环境的MLW模型及建模方式。其后,从耗散系统的复杂特性人手,给出复杂度的定义,并围绕复杂的三个层次给出复杂电磁环境的度量方法。其后,设计了复杂电磁环境度量硬件系统,给出基于PXI的复杂电磁环境参量测试系统和一种性能较低,但成本、体积都更为理想的微波探针系统。然后讨论一种可以测试信号的极化方式的天线布局方法。最后讨论复杂电磁环境复杂度度量的算法和软件设计方案。结合前面讨论的度量方法,结合硬件可以测出的参数,给出具体的度量算法,之后给出的硬件系统的软硬件交互设计,给出软件控制设备的方法。最后在前文定义了三种复杂度的基础上,对度量方法和度量系统实现过程进行了仿真和实验验证,通过构建不同的电磁环境,对构建的电磁环境进行度量,通过对结果的分析,证明测试方法可以有效测试复杂电磁环境复杂度在空间中的分布情况,同时系统度量值、仿真计算值与理论推导的情况基本一致。
[Abstract]:As the number of electromagnetic signals increases, more complex electromagnetic environment, effects on the electronic system is more and more big, complex electromagnetic environment also gradually began to get people's attention. The electromagnetic signal in electromagnetic environment can enter the electronic information system through a variety of ways, such as the fruit of all kinds of interference signals into the system, and the system cannot effectively to eliminate the interference signal, the interference signal will affect the normal work of the electronic information system. Now, many exposed major security incidents and military training problem clearly shows that the serious influence of complicated electromagnetic environment on the electronic information system has been expanded to the social development and a serious threat to public safety, national defense and army building in view of the complicated electromagnetic environment. It is difficult to evaluate, especially the electromagnetic environment and the electronic information system interaction, tightly coupled under the electromagnetic environment complexity It is difficult to measure the problem, to carry out research on the electromagnetic environment complexity measure method, proposed measurement criteria, metrics and measurement methods, provide the basis for the method of complex electromagnetic environment evaluation and simulation, it is necessary for evaluation of the complexity of the complex electromagnetic environment is the basis of other research. The degree of complex electromagnetic environment starting from the research results, complexity and complex system, find the source and nature of complex electromagnetic environment, set up a large measure of complexity science. This paper from the complexity science perspective, to explore the complex electromagnetic environment, performance, characteristics and method of complexity metrics for complex electromagnetic environment this paper consists of three parts. The first describes the model of complex electromagnetic environment and the complexity of the measurement method, from the establishment of model of complex electromagnetic environment Hand, signal model and network topology models of complex electromagnetic environment, to prove the basic parameters of the signal model of electromagnetic environment will be given the orthogonality between the signal model, gives seven dimensions orthogonality that in network topology in the model established is suitable for complex electromagnetic environment MLW model and modeling method. Then, from the hand the complex characteristics of dissipative system, gives the definition of complexity, and around three levels are complicated electromagnetic environment measurement method. Subsequently, the design of complex electromagnetic environment measurement hardware system is given based on PXI complex electromagnetic environment parameters testing system and a lower performance, but the cost and volume are more microwave probe the ideal system. Then discuss the antenna layout method can test the signal polarization. Finally discuss the complex electromagnetic environment complexity measure algorithm and software The design scheme. With measurement method mentioned above, combined with the hardware parameters can be measured. The measurement algorithm was introduced after the hardware and software hardware system gives the interaction design method, control equipment software. Finally defined in the above three kinds of complexity on the basis of measuring method and realization process of the system the simulation and experimental verification, through the construction of different electromagnetic environment, electromagnetic environment of construction measurement, through the analysis of the results, that the test method can effectively test the complicated electromagnetic environment complexity in space distribution, and the system measure, simulation values and theoretical derivation is basically consistent.

【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TN97

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