基于相位扰动的无线通信信号抗干扰自动控制研究  

Research on Anti-interference Automatic Control of Wireless Communication Signal Based on Phase Disturbance

作　　者：曹宁 CAO Ning(Zhongke Soft Technology(Chongqing)Co.,Ltd.,Chongqing 401121,China)

机构地区：[1]中科软科技(重庆)有限公司,重庆401121

出　　处：《甘肃科学学报》2022年第4期20-25,共6页Journal of Gansu Sciences

摘　　要：为减少通信干扰,保证信息有效传输,提出基于相位扰动的无线通信信号抗干扰自动控制方法。通过分析信道衰落特点,建立信道模型,从自相关性、功率谱密度和电平通过率等方面提取信道统计特征,提供相位调制依据。利用深度学习算法归一化处理信号功率,确保信号功率强度统一。将处理后的信号作为学习网络的输入项,经过不断学习,判断信号是否受到相位扰动干扰。利用可调谐光延迟线、拉伸器、控制器与偏置器等设备构成相位调制器,设定输入光场形式,确定调制器信号格式,针对相位扰动现象,通过调制器调整相位,实现信号抗干扰自动控制。仿真实验证明,本次研究所提方法降低了传输误码率,当受到干扰时可快速恢复正常通信,自动控制效果满足高质量通信需求。In order to reduce communication interference and ensure effective information transmission,an anti-interference automatic control method of wireless communication signal based on phase disturbance is proposed.The characteristics of channel fading are analyzed,the channel model is established,and the channel statistical characteristics are extracted from the aspects of autocorrelation,power spectral density and level throughput to provide the basis for phase modulation.Then the deep learning algorithm is used to normalize the signal power to ensure the unity of signal power intensity.The processed signal is used as the input of the learning network.After continuous learning,it is judged whether the signal is disturbed by phase disturbance.The phase modulator is composed of tunable optical delay line,stretcher,controller and bias device.Based on these preparations,the input light field form is set and the modulator signal format is determined.For the phenomenon of phase disturbance,the phase is adjusted by the modulator to realize the automatic control of signal anti-interference.The simulation results show that the proposed method reduces the transmission bit error rate,it can quickly restore normal communication when getting disturbed,and the automatic control effect could meet the needs of high-quality communication.

关 键 词：相位扰动 无线通信 信号抗干扰 自动控制 相位调制器 

分 类 号：TN914[电子电信—通信与信息系统]