发明名称 A SYSTEM FOR GENERATING AND USING GLOBAL RADIO FREQUENCY MAPS
摘要 A method is disclosed for defining a radio frequency map to be used to isolate negative effects of undesirable radio frequency emitters on radio device communications, handheld and stationary. The method includes the steps of measuring C-band power corresponding to an L-band beam as part of an L-band footprint of a communication satellite, calculating various identifiable interference errors associated with the signal transmission path, and subtracting the interference errors from the original C-band power measurement resulting in a power value corresponding to undesirable radio frequency emitter interference at the location of the L-band beam. The resultant radio frequency map can then be used to reallocate frequency channels of operation used by radio devices, mobile phones for example, resulting in power savings in the radio device while maintaining a suitable signal-to-noise ratio.
申请公布号 CA2234758(A1) 申请公布日期 1998.10.29
申请号 CA19982234758 申请日期 1998.04.16
申请人 GLOBALSTAR, L.P. 发明人 SERRI, JOHN A.;GALLAGHER, VIJAYA K.;WIEDEMAN, ROBERT A.
分类号 H04B7/26;H04B7/15;H04B7/185;(IPC1-7):G01R29/08;H04B17/00;H04Q7/34 主分类号 H04B7/26
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