月球反射干涉测量法
Lunar Reflective Interferometry
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中文总结 AI 辅助
该研究提出月球反射干涉测量法（LRI），利用月球轨道航天器天线形成虚拟干涉仪，证明低射电频率下月表大部分区域足够平滑，分析误差并介绍其天体物理应用。
中文摘要 AI 辅助
我们提出月球反射干涉测量法（LRI），该方法利用月球轨道上的航天器天线接收直射射线与月球表面反射射线，从而形成虚拟干涉仪。该技术采用镜像法，类似经典的“海崖”干涉仪，以月球表面（主要是月海）替代海面。我们详细描述该方法，证明月球表面在低射电频率（ν≲10 MHz）下的大部分区域足够平滑，可支持该技术工作，并概述航天器仪器的实现方案。我们分析潜在的系统误差及缓解方法，还介绍了该方法的多项天体物理学应用。
英文摘要
We present the method of lunar reflection interferometry (LRI) in which a virtual interferometer can be formed by using a spacecraft-borne antenna in lunar orbit that receives both direct rays and those reflected from the lunar surface. The technique exploits the method of images and is akin to the classic "sea cliff" interferometer, with the Moon's surface, primarily the lunar Maria, replacing the ocean surface. We describe the method in detail, demonstrate that significant portions of the Moon's surface are sufficiently smooth at low radio frequencies, $ν\lesssim 10\,\mathrm{MHz}$, for the technique to work, and outline a spacecraft instrument implementation. We describe potential systematic errors and how they could be mitigated. We present several astrophysics applications of the method.
