摘要
现有数字信号传输噪声抑制方法未考虑到信道的时变性,无法达到预期的抑制效果,为此提出基于蒙特卡罗法的数字信号传输噪声抑制方法。建立数字信号传输系统数学模型,描述数字信号传输状态;利用快速独立分量分析技术识别系统的低频振荡;利用蒙特卡罗法对数字信号传输噪声抑制统计,模拟理想条件下电力通信系统调节参数,通过对数字信号传输系统进行参数优化调节,实现基于蒙特卡罗法的数字信号传输噪声抑制。经实验证明,在设计方法应用下的系统阻尼比在0.8以上,传输噪声信号振幅在1 dB左右,能够有效抑制传输噪声。
The existing digital signal transmission noise suppression methods have not taken into account the timevarying nature of the channel,and cannot achieve the expected suppression effect.Therefore,a digital signal transmission noise suppression method based on Monte Carlo method is proposed.Establish a mathematical model for digital signal transmission system and describe the state of digital signal transmission.Using fast independent component analysis techniques to identify low-frequency oscillations in the system.Using Monte Carlo method to statistically suppress noise in digital signal transmission,simulate the adjustment parameters of the power communication system under ideal conditions,and achieve noise suppression in digital signal transmission based on Monte Carlo method by optimizing and adjusting the parameters of the digital signal transmission system.Experimental results have shown that under the application of the design method,the system damping ratio is above O.8,and the transmission noise signal amplitude is around 1 dB,which can effectively suppress transmission noise.
作者
陈玥如
CHEN Yueru(State Grid Shanxi Electric Power Company Linfen Power Supply Company,Linfen Shanxi 041000,China)
出处
《信息与电脑》
2023年第24期196-198,共3页
Information & Computer
关键词
数字信号传输
噪声抑制
蒙特卡罗法
调节参数
阻尼比
digital signal transmission
noise suppression
Monte Carlo method
adjusting parameters
damping ratio
