Space has been reforming and this evolution brings new threats that, together with technological developments and malicious intent, can pose a major challenge. Space domain awareness (SDA), a new conceptual idea, has come to the forefront. It aims sensing, detection, identification and countermeasures by providing autonomy, intelligence and flexibility against potential threats in space. In this study, we first present an insightful and clear view of the new space. Secondly, we propose an integrated SDA and communication (ISDAC) system for attacker detection. We assume that the attacker has beam-steering antennas and is capable to vary attack scenarios, such as random attacks on some receiver antennas. To track random patterns and meet SDA requirements, a lightweight convolutional neural network architecture is developed. The proposed ISDAC system shows superior and robust performance under 12 different attacker configurations with a detection accuracy of over 97.8%.
翻译:空间正在经历变革,这种演进带来了新的威胁,加之技术发展及恶意意图,可能构成重大挑战。空间态势感知(SDA)作为一种新概念,已进入研究前沿。它通过提供自主性、智能性和灵活性,旨在实现对太空中潜在威胁的感知、探测、识别与反制。在本研究中,我们首先对新兴太空领域提出清晰且具洞察力的观点。其次,我们提出一种用于攻击者探测的集成式空间态势感知与通信(ISDAC)系统。假设攻击者配备波束赋形天线,并能改变攻击场景,例如对某些接收天线实施随机攻击。为追踪随机模式并满足SDA要求,我们开发了一种轻量级卷积神经网络架构。所提出的ISDAC系统在12种不同攻击者配置下展现出卓越且稳健的性能,探测准确率超过97.8%。