大气波导中电波传播特性的研究

Abstract

Abstract:

To investigate the propagation properties of radio waves in atmospheric duct, according to the fact that the traditional Split-step Fourier Transform method does not work well in treating the propagation problem with the impedance boundary condition, the Discrete Mixed Fourier Transform Method is used to solve the narrow angle parabolic equation with the impedance boundary condition is presented, and a detailed computational method and the solving step are also given. In the process of discretization of the auxiliary function, the traditional central difference formula is replaced by the backward difference formula, and numerical results show the method is of good stability. This approach establishes the theoretical foundation for studying the assessment of radar performance and radar detection shadow zone.

Key words: parabolic equation, atmospheric duct, propagation loss, discrete sine transform

CLC Number:

TN011

YANG Chao;GUO Li-xin;LI Hong-qiang;WU Zhen-sen. Study the propagation characteristic of radio wave in atmospheric duct[J].J4, 2009, 36(6): 1097-1102+1138.

References

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[1]	ZHAO Xiao-long1;2;HUANG Ji-ying1. Research on multi-path channel parameters in the marine atmospheric duct [J]. J4, 2008, 35(2): 314-318.
[2]	JIAO Lin;ZHANG Yong-gang. Study of the shadow zone of the radar in the atmospheric duct [J]. J4, 2004, 31(5): 815-820.

Study the propagation characteristic of radio wave in atmospheric duct

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