CAJ | 학술논문

移动通信的发展依赖大量的频谱资源，从而使得频谱资源供给日趋紧张，广播电视业务使用的700 MHz频段成为广泛关注的热点频段，而采用模数转换技术节约的频谱资源一般被称为数字红利。介绍了国外主要国家及国内模数电视转换进展情况，并以陕西省为例进行了700 MHz频谱占用度测试，提出了对模数电视转换释放频谱的预测及分配建议。
이동통신적발전의뢰대량적빈보자원，종이사득빈보자원공급일추긴장，엄파전시업무사용적700 MHz빈단성위엄범관주적열점빈단，이채용모수전환기술절약적빈보자원일반피칭위수자홍리。개소료국외주요국가급국내모수전시전환진전정황，병이합서성위례진행료700 MHz빈보점용도측시，제출료대모수전시전환석방빈보적예측급분배건의。
With the development of mobile communications,it depends on a large amount of spectrum resources more and more, which makes the spectrum resources unsufficient.The 700 MHz frequency band used by broadcast services becomes a focus widely con-cerned.The saved spectrum resources by using analog-digital conversion technology are generally called digital dividend. This paper introduces the analog to digital TV conversion progress in China and abroad,and as an example makes a 700 MHz spectrum occupancy test in Shaanxi Province.Finally presented are the prediction on the spectrum released due to analog to digital television conversion and the spectrum allocation recommendations.