摘要
常规的射频信号接收高频抗干扰方法在高频环境下,信号接收质量较差,影响中波通信的质量。为此,本文提出了一种基于CAN总线的中波发射射频信号接收高频抗干扰方法。该方法通过抵消中波发射射频信号接收的前馈噪声,在放大器上添加反馈通路,以增大输出阻抗并改善端口隔离度。基于CAN总线构建射频信号接收高频抗干扰模型,更新抗干扰自适应梯度参数,调整状态变量,从而完成抗干扰研究。实验结果表明,本文提出的方法具有较强的抗干扰能力,能够应用于实际和工作场景中。
Conventional high-frequency anti-jamming methods for RF signal reception have poor signal reception quality in high-frequency environment,which affects the quality of medium-wave communication.Therefore,a high-frequency anti-interference method based on CAN bus is proposed.The feed-forward noise of medium-wave transmitting RF signal is cancelled,and a feedback path is added to the amplifier to increase the output impedance and improve the port isolation.Based on CAN bus,the high-frequency anti-jamming model of RF signal reception is constructed,the anti-jamming adaptive gradient parameters are updated,and the state variables are adjusted to complete the anti-jamming research.The experimental results show that this method has strong anti-interference ability and can be applied in work scenarios.
作者
温常明
Wen Changming(Station 802,Ji'an,Jiangxi Province,Jiangxi 343000,China)
出处
《广播与电视技术》
2025年第5期79-82,共4页
Radio & TV Broadcast Engineering
关键词
CAN总线
中波发射
射频信号
接收高频
抗干扰方法
CAN bus
Medium wave transmission
RF signal
Receiving high frequency
Anti-interference method
