Title:
MOTOR NONLINEAR DISTORTION COMPENSATION METHOD AND APPARATUS, AND COMPUTER-READABLE STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2021/134315
Kind Code:
A1
Abstract:
A motor nonlinear distortion compensation method and apparatus, and a computer-readable storage medium. The motor nonlinear distortion compensation method comprises: exciting a motor system by means of a logarithm frequency sweeping signal x(n), and collecting an acceleration signal y(n) of the motor system by means of an accelerometer (S11); acquiring an inverse filtering signal q(n) by means of the logarithm frequency sweeping signal x(n) and the acceleration signal y(n) (S12); and eliminating the second to the p-th harmonic distortion of an m-order component in the inverse filtering signal q(n) so as to compensate for nonlinear distortion of the acceleration of a motor by means of compensation filters of different orders (S13). A motor system is used as a black box, and the nonlinear distortion of a nonlinear system model of a Volterra filter is numerically compensated for, such that nonlinear distortion compensation can be performed without knowing a physical model.
Inventors:
XIANG ZHENG (CN)
GUO XUAN (CN)
LI TAO (CN)
GUO XUAN (CN)
LI TAO (CN)
Application Number:
PCT/CN2019/130144
Publication Date:
July 08, 2021
Filing Date:
December 30, 2019
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECHNOLOGIES PTE LTD (SG)
AAC TECHNOLOGIES PTE LTD (SG)
International Classes:
H03F1/32; G01R31/34; H03M1/06
Foreign References:
| CN110247631A | 2019-09-17 | |||
| CN109901066A | 2019-06-18 | |||
| CN106255027A | 2016-12-21 | |||
| CN108509933A | 2018-09-07 | |||
| US20130336377A1 | 2013-12-19 | |||
| CN110346720A | 2019-10-18 | |||
| US10333561B2 | 2019-06-25 |
Attorney, Agent or Firm:
SHENZHEN ZICHEN INTELLECTUAL PROPERTY AGENCY LIMITED (CN)
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