A New Method for I/Q Impairment Evaluation in OFDM Transmitters
作者： L. Angrisani , I. Ghidini , M. Vadursi
DOI: 10.1109/IMTC.2005.1604491
关键词:
摘要: The paper focuses the attention on orthogonal frequency division multiplexing (OFDM) digital transmitter testing and troubleshooting, with particular regard to I/Q impairment detection estimation. Due modulation technique peculiar OFDM, methods based diagram analysis, designed for traditional transmitters, cannot profitably be applied. A new measurement method non-intrusive OFDM troubleshooting is proposed. an analytical model that properly accounts way impairments affect output signal, special mirror sub-carrier interference, implements original procedure estimate amounts. Besides presenting along fundamental steps of method, gives details extended experimental activity carried out actual signals in order assess its performance
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