...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Radiophysics and quantum electronics >FEATURES OF HF RADIO WAVE ATTENUATION IN THE MIDLATITUDE IONOSPHERE NEAR THE SKIP ZONE BOUNDARY
【24h】

FEATURES OF HF RADIO WAVE ATTENUATION IN THE MIDLATITUDE IONOSPHERE NEAR THE SKIP ZONE BOUNDARY

机译：跳过区域边界附近中位电离层中HF无线电波衰减的特征

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We briefly describe the history of studying the decameter radio wave attenuation by different methods in the midlatitude ionosphere. A new method of estimating the attenuation of HF radio waves in the ionospheric F region near the skip zone boundary is presented. This method is based on an analysis of the time structure of the interference field generated by highly stable monochromatic X-mode radio waves at the observation point. The main parameter is the effective electron collision frequency nu(eff), which allows for all energy losses in the form of equivalent heat loss. The frequency nu(eff) is estimated by matching the assumed (model) and the experimentally observed structures. Model calculations are performed using the geometrical-optics approximation. The spatial attenuation caused by the influence of the medium-scale traveling ionospheric disturbances is taken into account. Spherical shape of the ionosphere and the Earth's magnetic field are roughly allowed for. The results of recording of the level of signals from the RWM (Moscow) station at a frequency of 9.996 MHz at point Rostov are used.
机译：我们简要介绍了通过不同方法在中间电离层中研究了研究借助无线电波衰减的历史。介绍了一种估计跳过区域边界附近的电离层F区域中HF无线电波衰减的新方法。该方法基于在观察点处由高度稳定的单色X模式无线电波产生的干扰场的时间结构的分析。主参数是有效的电子碰撞频率Nu（EFF），其允许以等效热损失的形式允许所有能量损失。通过匹配假定的（模型）和实验观察的结构来估计频率Nu（EFF）。使用几何光学近似进行模型计算。考虑了中型行驶电离层干扰的影响引起的空间衰减。电离层的球形和地球磁场粗略允许。使用在点罗斯托夫在9996MHz的频率下记录来自RWM（莫斯科）站的信号水平的结果。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号