Phase measurement device, method, program, and recording medium

A phase measurement method of measuring an output from a circuit to be measured upon feeding an input signal having at least two input frequency components to the circuit to be measured, said method comprising:

• acquiring phases of the input frequency components and a distortion component based upon a local frequency;
• measuring a match time at which the phases of the input frequency components match each other based upon an acquired result of said phase acquisition step;
• and
• measuring a phase of the distortion component at the match time based upon an acquired result of said phase acquisition step,
• wherein the distortion component includes at least either of a high frequency distortion component that has a frequency higher than the input frequency components, and a low frequency distortion component that has a frequency lower than the input frequency components, and
• said phase acquisition step acquires both or either of a highest frequency component and a lowest frequency component of the input frequency components, and a phase of the high frequency distortion component or the low frequency distortion component.

A computer-readable medium having a program of instructions for execution by the computer to perform a phase measurement process of a phase measurement device that measures an output from a circuit to be measured upon feeding an input signal having at least two input frequency components to the circuit to be measured, having a phase acquisition section that acquires phases of the input frequency components and a distortion component based upon a local frequency, said phase measurement process comprising:

• measuring a match time at which the phases of the input frequency components match each other based upon an acquired result of said phase acquisition section;
• and
• measuring a phase of the distortion component at the match time based upon an acquired result of said phase acquisition section,
• wherein the distortion component includes at least either of a high frequency distortion component that has a frequency higher than the input frequency components, and a low frequency distortion component that has a frequency lower than the input frequency components, and
• said phase acquisition section acquires both or either of a highest frequency component and a lowest frequency component of the input frequency components, and a phase of the high frequency distortion component or the low frequency distortion component.
• a distortion component phase compensator that corrects the measurement result of said distortion component phase measurer based upon the phase change quantity.