BEHAVIOR OF OMEGA RADIO WAVE PROPAGATED ACROSS THE EQUATOR

欧米茄无线电波跨越赤道传播的行为

基本信息

批准号：
63460069
负责人：
TAGUCHI Kazuo
金额：
$ 4.35万
依托单位：
FACULTY OF FISHERIES, KAGOSHIMA UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (B)
财政年份：
1988
资助国家：
日本
起止时间：
1988 至 1989
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-63460069/
关键词：
VLF RADIO WAVE PROPAGATION N-S PROPAGATION OF OMEGA WAVE CYCLE JUMP OF OMEGA WAVE ATTENUATION RATE OF DIRECTIONAL DEPENDENCY OMEGA NAVIGATION SYSTEM 双曲線航法 VLF電波南北伝搬オメガ電波の南北伝搬

项目摘要

Observations of OMEGA Australia signals in the Western Pacific including Malay Peninsula and OMEGA Japan signals in Australia were performed. These observing sites are Kagoshima, Atukeshi(Hokkaido) and Kuala Trengganu(Malaysia) where observed phase and amplitude of OMEGA signals described above in three frequencies 10.2,13.6 and 11.3kHz. An unexpected number of jumps occur in both OMEGA signals of 10.2kHz and 11.3kHz during nighttime and during sunset and sunrise transitions.Analyzing observation results on board ship "Tsusima" belong to Maritime Safety Agency which researched radio navigational aids over the North Pacific and Coral Sea near Papua New Guinea during 1984 to 1989. It is found that jumps first appeared in the longitude of 155" East and the number of jumps increased as we move to the west. since longitude of 155" East corresponds to magnetic north from OMEGA Australia; this phenomenon will be caused by the magnetic azimuth and latitude dependence of OMEGA propagation. Moreover the same result is detectable in the signal of OMEGA Japan observed at Australian receiving sites as well.It is interesting to compare experimentally the characteristics of N-S propagation from OMEGA Japan to Australia with that of S-N propagation from OMEGA Australia to Japan. The magnitude of the phase change in a day in cecs per 1,000km of path length, can be estimated. Through the frequencies 12.8kHz and 13.6kHz differ, it may be that the diurnal velocity change for N-S propagation with E-W component is approximately equal to that for S-N propagation with an E-W component. In this case, the directional reciprocity is found experimentally.

对西太平洋欧米茄（Omega Australia）信号的观察进行了观察，包括马来半岛和澳大利亚欧米茄日本信号。这些观察到的位点是Kagoshima，Atukeshi（北海道）和Kuala Trengganu（马来西亚），在上面的三个频率10.2,13.6和11.3khz中观察到的相位和欧米茄信号的相位和振幅。在夜间以及日落和日出过渡期间，欧米茄信号的10.2kHz和11.3kHz的欧米茄信号中都出现了意外的跳跃。 1984年至1989年，巴布亚新几内亚附近的海上海洋。发现跳跃首先以155英寸的经度出现，而随着我们搬到西部的速度，跳跃的数量增加了。由于155英寸的经度向东对应于澳大利亚欧米茄的磁性北部。 ;这种现象将是由欧米加传播的磁性方位角和纬度依赖性引起的。此外，在澳大利亚接收地点观察到的欧米茄日本的信号中也可以检测到相同的结果。有趣的是，通过实验比较了从欧米茄日本的N-S传播到澳大利亚的n-S传播的特征与从澳大利亚欧米茄到日本的S-N传播的特征。可以估计，每天的CEC每天1,000公里长度的CEC的相变大小可以估计。通过频率12.8kHz和13.6kHz不同，可能是用E-W分量n-S传播的昼夜速度变化大约等于与E-W分量的S-N传播的变化。在这种情况下，通过实验发现定向互惠。