Narrowband interference suppression algorithm applied to integrated communication and sensing systems in maritime environments

Abstract

We will build an integrated communication and perception system that has the ability to detect targets and communicate with downstream users. The radar is designed as an omnidirectional radar and optimized for the balance of radar detection performance and communication performance. In maritime communication, the signal is often affected by narrow-band interference during transmission, which causes great damage to the communication quality. Aiming at this problem, a set of narrow-band interference cancellation algorithm combined with the integrated communication perception system is designed. This algorithm improves the classic threshold algorithm to achieve threshold adaptation. Finally, simulation shows the harm caused by narrow-band interference and the necessity of removing narrow-band interference. Compare the symbol error rate of the signal under narrowband interference with the signal processed by this algorithm to prove the effectiveness of the algorithm. This algorithm is compared with the traditional algorithm, which proves the improvement of algorithm performance.