首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Dual Frequency Radio Science experiment onboard Chandrayaan-2: a radio occultation technique to study temporal and spatial variations in the surface-bound ionosphere of the Moon
【24h】

Dual Frequency Radio Science experiment onboard Chandrayaan-2: a radio occultation technique to study temporal and spatial variations in the surface-bound ionosphere of the Moon

机译:双频无线电科学实验船上ChandRayaan-2:一种无线电弥补技术研究月球表面结合电离层的时间和空间变化

获取原文
获取原文并翻译 | 示例
           

摘要

The Dual Frequency Radio Science experiment aboard Chandrayaan-2 uses the communication channel between orbiter and ground in radio occultation mode to study the temporal evolution of electron density in the lunar ionosphere. It consists of a highly stable 20 MHz evacuated miniaturized crystal oscillator source, having a stability of the order of 10-11, which generates two coherent signals at the X (8496 MHz) and S (2240 MHz) bands of radio frequencies. The coherent radio signals, transmitted simultaneously from the satellite and received at the ground-based deep station network receivers would be used to study temporal and spatial variations in the lunar ionosphere. The major science objectives of the experiments include: (i) to study variations in the ionosphere/atmosphere of the Moon; (ii) to explore if the ionosphere of the Moon is omnipresent or has episodic appearances, and (iii) to confirm the source of ions in the lunar ionosphere - whether dusty or molecular.
机译:双频无线电科学实验船舶ChandRayaan-2使用轨道器与地面之间的通信通道,在无线电掩星模式中研究了月球电离层中电子密度的时间演变。 它包括高度稳定的20MHz疏散的小型化晶体振荡器源,其稳定性为10-11,它在X(8496MHz)和S(2240MHz)的无线电频带中产生两个相干信号。 从卫星同时发送并在地面深站网络接收器中传输的相干无线电信号将用于研究月球电离层的时间和空间变化。 实验的主要科学目标包括:(i)研究月球的电离层/气氛中的变化; (ii)探索月球的电离层是无所不在的还是具有集体外观,以及(iii)以确认月球电离层中离子的来源 - 无论是尘土飞扬还是分子。

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