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目前,射频EAS系统的市场应用仍十分广泛,伴随着日益严重的电磁干扰,其抗干扰性能面临着更大的挑战。此文针对一体式射频EAS系统如何提高其抗干扰性能进行研究。根据不同干扰噪声的特点,对稳态干扰和瞬时干扰在系统工作的各个环节上的影响进行分析,有针对性地给出了一系列包括硬件和软件等方面的方法,提出了一种以信噪比为基础提高系统自适应能力的算法,并结合实验仿真进行了验证,结果表明,本方法提升了系统的抗干扰能力和稳定性。
At present, the market application of radio frequency EAS system is still very extensive, with increasingly serious electromagnetic interference, anti-interference performance is facing greater challenges. This article focuses on how the integrated radio frequency EAS system can improve its anti-jamming performance. According to the characteristics of different interference noises, the influences of steady-state interference and instantaneous interference on every link of the system are analyzed, and a series of methods including hardware and software are given in a targeted way. Noise ratio based on the system to improve the adaptive ability of the algorithm, combined with experimental simulation was verified, the results show that the method to enhance the system’s anti-interference ability and stability.