LINEARISATION AND MODULATION DEVICE

专利名称：LINEARISATION AND MODULATION DEVICE发明人：TAPIO, Olli申请号：EP99925037.6申请日：19990525公开号：EP1181768A1公开日：20020227

摘要：The invention discloses a kind of linearisation and frequency modulation poweramplifiers. The linearisation modulating device includes a digital vector modulator(103,104,105), digital signal (IF_MOD) for generating modulation is based on digitalbaseband signal (IIN,) and digital carrier signal (PH_S, PH_C) QIN; Correct valuegeneration device (114,108; 114a, 108a), for generating amplitude correction value(CV_AMAM) and phasing (CV_AMPM) value, (6) that non-linear distortion based on thedigital baseband signal (IIN, QIN) and based on the power amplifier generates are infollow-up phase; Amplitude correction means (106) are used for the digital signal(IF_MOD) based on corrected digital signal (IF_OUT) modulation and wherein theamplitude correction value (CV_AMAM); Means (110) occur for phasing means (111), thephase control signal for the output signal according to the phase control signal andphase correcting value of the correction; With carrier signal generation device (112), it isbased on exporting the method for correcting phase (111) for generating the carry signal(PH_S, PH_C). Using this equipment, combined modulator and it is linear can be fabricated,lead to a compact system.

申请人：Nokia Networks Oy

地址：Keilalahdentie 4 02150 Espoo FI

国籍：FI

代理机构：Leson, Thomas Johannes Alois, Dipl.-Ing.

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