SINGLE-POINT SAMPLING OPTIMIZATION METHOD AND SYSTEM FOR FREQUENCY RESPONSE MEASUREMENT
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United States of America
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Nov 28, 2024
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Jun 7, 2024
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Jun 7, 2024
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Abstract
The present disclosure discloses a single-point sampling optimized method and system for frequency response measurement. The frequency response measurement based on sinusoidal excitation is regarded as frequency domain sampling of system under test, the interpolation error between piecewise linear interpolation model of existing sampling value and the theoretical model of the system under test is estimated, and a single newly added sampling point is placed in the sub-frequency band with maximum interpolation error, so as to achieve steepest descent of an overall interpolation error. The present disclosure does not rely on specific hardware, is directly embedded into existing frequency response analyzer, has high usability, high precision and high stability, and has good data inheritance.
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