| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an output distortion measuring apparatus which measures distortion characteristics of a power amplifier, and to provide an output distortion compensation apparatus which most appropriately control the distortion. Ž<P>SOLUTION: An input signal CCDF (Complementary Cumulative Distribution Function) characteristics calculation unit 4 calculates CCDF characteristics of an input signal which are CCDF characteristics of a signal input to the power amplification unit 1, an output signal CCDF characteristics calculation unit 5 calculates CCDF characteristics of an output signal which are CCDF characteristics of a signal output from the power amplification unit 1, an AM-AM characteristics calculation unit 6 calculates AM-AM characteristics of the power amplification unit 1 from the input signal CCDF characteristics and the output signal CCDF characteristics, and an AM-AM characteristics storing unit 7a stores the calculated AM-AM characteristics chronologically. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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