Anti‐Jamming Satellite Communication Based on Blind Source Separation: Problems and Challenges

ABSTRACT Spread spectrum communication technology is one of the most critical core technologies in anti‐jamming satellite communication systems. However, it has certain technical limitations in anti‐jamming applications. For instance, frequency‐hopping spread spectrum technology exhibits weak resistance against spot jamming, while direct‐sequence spread spectrum technology is less effective in mitigating wideband interference. With the continuous development of satellite countermeasure technologies, these technical limitations will significantly constrain the performance of satellite communication systems and compromise the reliable transmission of space‐based information. Aiming at the technical limitations of spread spectrum anti‐jamming satellite communication, this paper proposes a solution based on blind source separation technology to enhance the anti‐jamming capability of spread spectrum communication. This paper establishes a blind source separation‐based anti‐jamming communication prototype system, verifying the feasibility of applying blind source separation to communication anti‐jamming. It conducts an in‐depth analysis of the characteristics and existing issues in spread spectrum anti‐jamming satellite communication systems, identifies the problems and challenges of applying blind source separation to such systems, and proposes potential solutions.