復(fù)雜路徑上空過(guò)渡區(qū)域低頻電波傳播損耗求解

周麗麗; 白學(xué)勝; 穆中林; 蒲玉蓉; 席曉莉; 何立鳳

doi:10.11999/JEIT161332

復(fù)雜路徑上空過(guò)渡區(qū)域低頻電波傳播損耗求解

doi: 10.11999/JEIT161332

2.
(陜西科技大學(xué)電氣與信息工程學(xué)院西安 710021) ②(空軍工程大學(xué)航空航天工程學(xué)院西安 710038) ③(西安理工大學(xué)自動(dòng)化與信息工程學(xué)院西安 710048)

基金項(xiàng)目:

國(guó)家自然科學(xué)基金(61401261)，中國(guó)博士后科學(xué)基金(2016M600803)，陜西科技大學(xué)科研啟動(dòng)基金(BJ11-20)

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- 文章訪問(wèn)數(shù): 1372
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出版歷程
- 收稿日期: 2016-12-08
- 修回日期: 2017-05-07
- 刊出日期: 2017-08-19

Solution to Low-frequency Radio Wave Propagation Problems in Transition Regions over Irregular Terrain

2.
(College of Electrical and Information Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China)

Funds:

The National Natural Science Foundation of China (61401261), China Postdoctoral Science Foundation (2016M600803), The Scientific Research Startup Foundation of Shaanxi University of Science and Technology (BJ11-20)

摘要

摘要: 該文基于寬角拋物方程方法，對(duì)復(fù)雜路徑上空過(guò)渡區(qū)域低頻電波傳播損耗問(wèn)題進(jìn)行研究。增加了高空接收?qǐng)龇至康姆较蛞蜃庸酵茖?dǎo)及其約束條件；仿真了3種典型路徑模型下，距地面上空60 km范圍內(nèi)的垂直電場(chǎng)分布，并比較分析了其與近地表面變化規(guī)律的異同。所提方法能夠更好地將近地面與高空過(guò)渡區(qū)域場(chǎng)量求解方法統(tǒng)一起來(lái)，提高了計(jì)算精度，可為復(fù)雜地電離層波導(dǎo)中低頻天波傳播問(wèn)題解決提供技術(shù)支持。
- 低頻電波 /
- 過(guò)渡區(qū)域 /
- 寬角拋物方程 /
- 方向因子
Abstract: Based on the wide-angle parabolic equation method, propagation characteristics of low-frequency radio wave in transition regions over irregular terrain are analyzed. The formula of the direction factor is deduced with certain assumptions. Electric field distributions within 60 km height of three path models are simulated, and the propagation characteristics are compared with those on the ground. By the proposed approach calculation schemes of the electric field both on the ground and in transition regions can be unified with high accuracy, which is important for solutions of the sky-wave propagation problems in a complex earth-ionosphere waveguide.
- Low-frequency radio wave /
- Transition area /
- Wide-angle parabolic equation /
- Direction factor

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