摘要
针对调频广播发射中的信道噪声问题展开研究,通过建立综合噪声模型、设计自适应预加重滤波器和优化编码调制方案,构建一套基于信道噪声技术的调频广播发射系统。仿真实验表明,该系统在不同噪声环境下均能有效提升信噪比、降低调制误码率并提高频谱效率。
In this paper,the channel noise problem of frequency modulation broadcast transmission is studied,and a set of frequency modulation broadcast transmission system based on channel noise technology is constructed by establishing a comprehensive noise model,designing an adaptive pre-accentuation filter and optimizing the code modulation scheme.Simulation results show that the system can effectively improve the signal-to-noise ratio,reduce the modulation error rate and improve the spectrum efficiency under different noise environments.
作者
张鑫斌
ZHANG Xinbin(Shanxi Radio and Television Wireless Management Center,Taiyuan 030000,China)
出处
《电视技术》
2024年第9期123-125,共3页
Video Engineering
关键词
调频广播
信道噪声
自适应预加重
frequency modulation broadcasting
channel noise
adaptive pre-emphasis
