再入飛船通信環(huán)境建模研究

Modeling of communication environment of reentry spacecraft

摘要: 再入飛船的通信環(huán)境所受影響主要體現(xiàn)于飛船周圍等離子體鞘對(duì)電磁波產(chǎn)生衰減。為了研究飛船再入過程中衰減對(duì)通信的影響，需要建立飛船外圍的三維通信衰減仿真模型，在此基礎(chǔ)上可以研究適用于再入通信環(huán)境的新型通信技術(shù)。為此文章提出了再入飛船通信衰減的動(dòng)態(tài)建模方法，并根據(jù)氣動(dòng)、熱力學(xué)和電磁波理論公式提出了具體的飛船再入動(dòng)態(tài)通信環(huán)境建模方案，同時(shí)闡述了各部分建模的研究方法，為進(jìn)一步研究應(yīng)對(duì)黑障的新型通信技術(shù)奠定了基礎(chǔ)。

Abstract: The main feature of a reentry spacecraft communication environment is the attenuation of electromagnetic waves caused by the plasma sheath around the spacecraft. To study the attenuation impact on the communication of a reentry spacecraft, a three-dimensional simulation model should be built, which can be used to study new type communication technologies. In this paper, a method of modeling dynamical three-dimensional communication attenuation is proposed by using aerodynamics, thermodynamics and electromagnetic theorems. The modeling method of each module is discussed, as the fundamental of further research on blackout countermeasure technologies.