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《Via Satellite》,2014年7/8月合刊2014年4月,欧盟“哥白尼”(Copernicus)对地观测计划的首颗卫星——“哨兵”-1A(Sentinel 1A)卫星成功发射。作为欧洲先进技术的典范之一,“哨兵”-1A卫星是欧洲航天局(ESA)、欧洲委员会、欧洲航天产业和数据用户通力合作的产物,共有60余家公司参与了该卫星的设计和制造。然而,这一欧盟的旗舰级航天计划却正面临着预料之外的威胁。计划于2015年召开的世界无线电大会(WRC-15)将重启对C频段频谱分配议题的讨论,部分目前由卫星使用的C频段频谱可能将
“Via Satellite”, July / August 2014 In April 2014, the first satellite of the European Union “Copernicus Earth Observation Program” - “Sentinel 1A” Satellite successfully launched. As one of the examples of European advanced technologies, the “Sentinel” -A1 satellite is a product of the co-operation of the European Space Agency (ESA), the European Commission, the European aerospace industry and data users. More than 60 companies participated in the satellite design And made. However, the EU’s flagship space program is facing an unexpected threat. The World Radiocommunication Conference (WRC-15) scheduled for 2015 will resume discussions on the issue of spectrum allocation in the C-band and some of the C-band spectrum currently used by satellites may