摘要
在电力通信网络中,混合传输信号环境较为复杂,难以准确地分离出电力通信网络混合传输信号,其SNR值相对较低。为此,对电力通信网络混合传输信号分离序列流程进行仿真研究。调用观测信号模型观测实时活跃的网络混合传输信号状态,计算网络信号的射频长度。利用FastICA方法对网络混合传输信号进行射频调制,将调制处理的信号信息压缩,计算盲源信号点位的个数和独立信号分量。根据载波频率估计值得到电力通信网络混合传输信号序列,实现序列分离。实验结果表明,所研究方法能够准确地分离电力通信网络混合传输信号序列,且SNR值高达27.69,有效满足电力通信网络混合传输需求。
In the power communication network,the mixed transmission signal environment is more complex,it is difficult to accurately separate the mixed transmission signal of the power communication network,and its SNR value is relatively low.For this reason,the mixed transmission signal separation sequence flow of power communication network is simulated.Call the observation signal model to observe the real-time active network mixed transmission signal state,and calculate the RF length of the network signal.The FastICA method is used to modulate the radio frequency of the network mixed transmission signal,compress the modulated signal information,and calculate the number of blind source signal points and independent signal components.According to the carrier frequency estimation value,the mixed transmission signal sequence of power communication network is obtained to realize sequence separation.The experimental results show that the method can accurately separate the mixed transmission signal sequence of power communication network,and the SNR value is as high as 27.69,which effectively meets the mixed transmission requirements of power communication network.
作者
吕海军
LV Haijun(Information and Communication Branch,State Grid Hebei Electric Power Co.,Ltd.,Beijing 100032,China)
出处
《电子设计工程》
2024年第11期119-123,共5页
Electronic Design Engineering
关键词
电力通信网络
混合传输信号
信号分离
分离序列
序列流程
power communication network
mixed transmission signal
signal separation
separation sequence
sequence flow
