基于快速傅里叶变换的广播电视发射台信号干扰抑制研究  

Research on Signal Interference Suppression of Broadcasting and Television Transmission Stations Based on Fast Fourier Transform

作　　者：岳城 YUE Cheng(Fengcheng Integrated Media Center,Fengcheng,Jiangxi 331100,China)

机构地区：[1]丰城市融媒体中心,江西丰城331100

出　　处：《移动信息》2025年第2期40-42,共3页Mobile Information

摘　　要：为确保广播电视发射台信号的稳定传输与高质量接收,文中利用快速傅里叶变换,开展了广播电视发射台信号干扰抑制研究.首先,利用高速数据采集卡,连续采集广播电视发射台信号,对其进行去噪与校准处理;其次,利用快速傅里叶变换,识别发射台信号中的干扰信号;在此基础上,分析是否存在异步信号,通过贝叶斯处理实现干扰抑制.实验结果表明,应用该方法后,广播电视发射台信号的BER误比特率最高未超过0.04,具有良好的效果.In order to ensure the stable transmission and high-quality reception of radio and television transmitter signals,the research on interference suppression of radio and television transmitter signals is carried out by using fast Fourier transform.Firstly,the radio and television transmitter signals are continuously collected by using high-speed data collection cards,and then denoised and calibrated.Secondly,the interference signals in the transmitter signals are identified by using fast Fourier transform.On this basis,the existence of asynchronous signals is analyzed,and the interference suppression is achieved by Bayesian processing.The experimental results show that after applying this method,the maximum bit error rate of radio and television transmitter signals does not exceed 0.04,which has good results.

关 键 词：快速傅里叶变换 广播电视 发射台 信号 干扰 抑制 

分 类 号：TN919.4[电子电信—通信与信息系统]