论文标题
Terahertz波段关节雷达的新型LFM波形和卫星间链接的通信
A Novel LFM Waveform for Terahertz-Band Joint Radar and Communications over Inter-Satellite Links
论文作者
论文摘要
毫无疑问，随着卫星网络旨在满足6G和超越通信系统的需求，我们需要将目光投向天空。另一方面，存在数百万个大小的空间碎片碎片对新的空间通信系统构成威胁，这些空间通信系统由大量的小卫星组成，尤其是在低轨道中。在这项研究中，提出了Terahertz（THZ）带的双功能脉冲线性调制（LFM）波形，用于在低轨道间链路（ISLS）上进行无线通信和空间碎片感测。最初，提出了提出的波形的歧义函数。然后，研究了雷达功能的速度和范围估计性能以及通信功能的位错误率性能。模拟结果表明，与传统LFM系统相比，THZ波段的性能增长很大。
There is no doubt that we need to keep our eyes on the sky as satellite networks aim to address the demands of 6G and beyond communications systems. On the other hand, the existence of millions of space debris pieces, large or small, poses a threat to the new space communications systems which consist of large number of small satellites, especially in the low-orbit. In this study, a dual-functioning pulsed linear frequency modulated (LFM) waveform at Terahertz (THz) bands is proposed for both wireless communications and space debris sensing over low-orbit inter-satellite links (ISLs). Initially, the ambiguity function of the proposed waveform is derived. Then, velocity and range estimation performance for the radar function and bit error rate performance for the communications function are investigated. Simulation results indicate significant performance gains in the THz-bands compared to the legacy LFM systems.
