噪声消除技术在广播电视播控机房电源改造中的应用  

Noise Cancellation Technology in the Power Retrofit of Broadcasting and Television Control Rooms

作　　者：张绪利 姚正刚 ZHANG Xuli;YAO Zhenggang(Chengyang District Branch of China Broadcasting Network Co.,Ltd.,Qingdao 266108,China)

机构地区：[1]中国广电山东网络有限公司城阳区分公司,山东青岛266108

出　　处：《电声技术》2024年第6期77-79,共3页Audio Engineering

摘　　要：随着广播电视事业的蓬勃发展,播控机房供电系统面临日益严峻的电磁兼容挑战。噪声干扰已成为影响音视频信号质量和设备可靠性的关键因素。基于此,深入分析噪声消除技术在广播电视播控机房电源改造中的应用,重点介绍电源滤波器、接地与屏蔽、主动噪声控制等方法的原理和实现流程,并结合实际案例,论证综合运用多种噪声消除技术对改善机房电磁环境、提升节目制播质量的显著效果。With the vigorous development of the broadcasting and television industry,the power supply system of the broadcasting control room is facing increasingly severe electromagnetic compatibility challenges.Noise interference has become a key factor affecting the quality of audio and video signals and equipment reliability.Based on this,an in-depth analysis is conducted on the application of noise elimination technology in the power transformation of broadcasting and television control rooms,with a focus on introducing the principles and implementation processes of power filters,grounding and shielding,active noise control,and other methods.Combined with practical cases,the significant effects of comprehensively applying various noise elimination technologies on improving the electromagnetic environment of the computer room and enhancing the quality of program production and broadcasting are demonstrated.

关 键 词：播控机房 电源改造 噪声消除 电磁兼容 

分 类 号：TN948.1[电子电信—信号与信息处理]