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    • 10. 发明申请
    • Phase Measurement Device, Method , Program, And Recording Medium
    • 相位测量装置,方法,程序和记录介质
    • US20080018322A1
    • 2008-01-24
    • US10597415
    • 2005-01-19
    • Makoto KurosawaJuichi Nakada
    • Makoto KurosawaJuichi Nakada
    • G01R25/00
    • G01R23/20
    • The phases of distortions of a signal outputted from an amplifier are measured. A phase measurement device measures an output of an amplifier when an input signal having input frequency components ω10 and ω20 is fed to the amplifier. The phase measurement device includes multipliers for orthogonally transforming the output of the amplifier by means of ωc, a phase acquisition section for acquiring phases θ1 and θ2 of the input frequency components ω10 and ω20 in the output of the multipliers, and θ3 and θ4 (third distortion), and θ5 and θ6 (fifth distortion) of the distortion components, a match time/phase measurement section for measuring a match time point Δt when θ1 and θ2 match each other according to the acquisition result of the phase acquisition section, and a distortion component phase measurement section for measuring phases θ3 to θ6 of the distortion components at the match time point Δt according to the acquisition result of the phase acquisition section. The phase acquisition section acquires at least one of θ1 and θ2, and θ3 and θ5 (with the frequencies higher than those of θ1 and θ2) or θ4 and θ6 (with the frequencies lower than those of θ1 and θ2).
    • 测量从放大器输出的信号失真的相位。 当具有输入频率分量ω10和ω20的输入信号馈送到放大器时,相位测量装置测量放大器的输出。 相位测量装置包括乘法器,用于通过ωcac对放大器的输出进行正交变换;相位获取部分,用于在乘法器的输出中采集输入频率分量ω10和ω20的相位θ1和θ2,θ 3和θ4(第三失真),以及失真分量的θ5和θ6(第五失真);匹配时间/相位测量部分,用于测量当θ1和θ2彼此匹配时的匹配时间点Deltat 相位获取部分的采集结果,以及根据相位获取部分的获取结果测量匹配时间点Deltat处的失真分量的相位θ3至θ6的失真分量相位测量部分。 相位获取部分获取θ1和θ2中的至少一个,以及θ3和θ5(频率高于θ1和θ2的那些)或θ4和θ6(频率低于θ 1和θ2)。