中国广播技术的演变及发展

The evolution and development of Chinese broadcasting technology

目的研究中国广播电台及广播技术的演变及发展。方法文献资料调研和考证分析。结果无线电广播发明于1906年;1920年,美国西屋电气公司开始播放节目,稍后传入中国;广播节目的录制及传输技术经历了从手动到自动,从模拟到数字,以至播出系统完全自动化、网络化等重要阶段。结论依托于科学技术的进步,中国的广播技术由弱变强,广播电台的节目录制、传输等技术发生了翻天覆地的变化,已逐步实现节目播出系统数字化、网络化、智能化、信息化和卫星直播等,并对人类文明和社会进步起了巨大的促进作用。

Aim To study the evolution and development of Chinese Radio Broadcast Station and broadcast technology. Methods Analysis of documentation. Results Radio broadcast was invented in 1906. In 1920, Westinghouse Electric Corporation tried to show the program which was made by themselves for testing. After that, the broadcast was introduced to China. Radio program production and transmission technology were updated from manual control to automatic control, from analog information to digital form, and finally to complete automation and network of system. Conclusion The technology of Chinese Radio Broadcast has been changed from weak to strong awing to the improvement of science technology. And because of the earthshaking changes in the technology of program production, transmission, etc. , the digitalization, network, intellectualization and informationization of program showing and satellite broadcasting service have great promotion effect to the human civilization and social progress.