ITU-R REPORT M 1169-1990 Sea surface multipath effects in the aeronautical mobile-satellite service《航空移动卫星业务中的海面多径传播效应》.pdf

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ITU-R RAPPORT M 766-2 FRENCH-1990 Feasibility of frequency sharing between the GPS and other services《全球定位系统和其他服务之间的频率共享的可行性》.pdf

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