期刊
IEEE TRANSACTIONS ON PLASMA SCIENCE
卷 51, 期 3, 页码 827-834出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPS.2023.3250182
关键词
Plasmas; Time-frequency analysis; Numerical models; Hypersonic vehicles; Standards; Probability density function; Adaptation models; Channel simulation; electron density mapping; hypersonic vehicle; quasi-neutral plasma layer; time consumption reduction
This article proposes an efficient simulation method by establishing the mapping relationship between electron density distribution and hypersonic plasma channel envelope and phase. It significantly reduces the simulation time of hypersonic plasma channels and provides an efficient and accurate channel environment for research on adaptive communication methods for hypersonic vehicles.
The quasi-neutral plasma layer around a hypersonic vehicle interferes with communication electromagnetic (EM) signals. Conventional communication methods cannot adapt to this special channel environment, and the communication link is always interrupted. The simulation of hypersonic plasma channels supports the study of adaptive communication methods, and the time consumption determines the efficiency of communication method evaluation. To reduce the time consumption of channel simulation, this article establishes the mapping relationship between the electron density distribution and the hypersonic plasma channel envelope and phase based on the EM wave propagation mechanism in plasma. The channel envelope and phase sequences can be directly obtained from the electron density change sequence, avoiding the time consumption caused by many numerical operations. The simulation results show that the proposed efficient simulation method is hundreds of times shorter than the EM calculation method under the same conditions and that the simulation error is less than 0.5% in most cases, which indicates that the proposed method can guarantee accuracy, greatly reduce the hypersonic plasma channel simulation time, and provide an efficient and accurate channel environment to support research on adaptive communication methods for hypersonic vehicles.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据