ITU-R QUESTION 2744-2008 Technical methods for improving the spectrum orbit utilization《提高频谱 轨道利用率的技术途径》.pdf
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1、 QUESTION ITU-R 274/4 Technical methods for improving the spectrum/orbit utilization (2008) The ITU Radiocommunication Assembly, considering a) that there is currently a shortage of available spectrum and orbital resources in some segments of the geostationary-satellite orbit (GSO) and in some frequ
2、ency bands; b) that coordination of satellite systems operating in the same frequency band may be difficult when angular separation of satellites is less than 2- 3; c) that satellite systems which have already been brought into use are experiencing progressively increasing levels of aggregate interf
3、erence; d) that, in some cases, state-of-the-art signal processing methods may be used to substantially reduce the effect of interferences created by systems operating in the same frequency bands, decides that the following Questions should be studied 1 What earth station (ES) techniques could be us
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