›› 2015, Vol. 28 ›› Issue (5): 187-.

• 论文 • 上一篇    

数字电视模拟微波传输系统数字化改造方案

王人磊   

  1. (昆明广播电视台 技术部,云南 昆明 650118)
  • 出版日期:2015-05-15 发布日期:2015-05-19
  • 作者简介:王人磊(1979—),男,硕士,工程师。研究方向:数字电视信号传播,电视系统工程,虚拟演播室。Email:61419574@qq.com

Digital Transformation Plan of Analog Microwave
Transmission Systems for Digital TV

WANG Renlei   

  1. (Technical Department,Kunming Radio and Television Broadcasting Station,Kunming 650118,China)
  • Online:2015-05-15 Published:2015-05-19

摘要:

研究了数字电视微波传输技术,根据各项数字化改造指标,使改造后的微波传输系统达到设计要求,可将误码率控制在≤10-6,信号电平储备为>20 dB,保证了电视广播传输在图像质量方面的稳定性。采用数字信号传输,有效的消除了原有模拟传输所带来的诸多问题,同时还保留了微波自身的优势,如抗击自然灾害能力强和易维护等特点。

关键词: 数字电视;微波传输系统;数字化改造;传输质量

Abstract:

This paper analyzes the use of microwave transmission for digital TV.By indicators for the digital transformation plan,the transformed microwave transmission system can have the BER ≤10-6 and the digital signal level reserve>20 dB,which guarantees the stability of the image quality and broadcast transmission.Digital microwave transmission of digital television signals effectively eliminates the problems in analog transmission and also has the advantage inherent in microwave of strong resistance to natural disasters and easy maintenance.

中图分类号: 

  • TN949.197