从频谱监测和国际协调探讨短波广播频段扩展的可行性

Discussions on Feasibility of Expanding SW Broadcast Band from Spectrum Monitoring and International Coordination

短波广播能够实现远距离和大范围的覆盖,至今仍是进行地区性、全国性及国际性广播覆盖的最好手段之一。ITU在2001年4月批准的1514建议书《30MHz以下广播频段的数字声音广播系统》,正式确定了DRM系统为全球统一的数字广播系统。在短波广播由模拟向数字化过渡的进程中,如何解决短波广播频谱短缺的问题,本文根据国家相关的频谱监测和国际短波频率协调的情况,对短波广播中4～10MHz频谱的扩展可行性进行初步分析。

In the process of transition of SW broadcasting from analog to digital a shortage of SW spectrum is a burning question. The general situation of SW broadcast spectrum is introduced, and the feasibility of expanding SW broadcast band, particularly 4- 10 MHz frequency spectrum, is discussed on from both the spectrum monitoring and the international coordination.