Title:
SIGNAL PROCESSING METHOD AND APPARATUS, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/208446
Kind Code:
A1
Abstract:
A signal processing method and apparatus, and an electronic device. The method comprises: obtaining an original excitation signal (301); calculating a maximum displacement value of a motor when the original excitation signal is inputted in the motor (302); determining a displacement interval to which the maximum displacement value belongs from at least two preset displacement intervals (303); acquiring a set of system parameter values corresponding to the displacement interval to which the maximum displacement value belongs from a set of system parameter values corresponding to each preset displacement interval, the one set of system parameter values comprising values of parameters related to an electromechanical coupling equation of a vibration system (304); and calculating a target voltage signal according to the acquired set of system parameter values and the original excitation signal, the target voltage signal being used for being inputted to the motor for motor excitation (305). The signal processing method can characterize nonlinear features of a vibration system, and the amount of calculation is relatively small.
Inventors:
ZHENG YAJUN (CN)
XIANG ZHENG (CN)
XIANG ZHENG (CN)
Application Number:
PCT/CN2020/132038
Publication Date:
October 21, 2021
Filing Date:
November 27, 2020
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECHNOLOGIES PTE LTD (SG)
AAC TECHNOLOGIES PTE LTD (SG)
International Classes:
H02P23/14
Foreign References:
| CN111486779A | 2020-08-04 | |||
| CN109104133A | 2018-12-28 | |||
| CN110502111A | 2019-11-26 | |||
| CN110112984A | 2019-08-09 | |||
| CN106208547A | 2016-12-07 | |||
| CN110346720A | 2019-10-18 | |||
| CN110943671A | 2020-03-31 | |||
| US20150059459A1 | 2015-03-05 |
Attorney, Agent or Firm:
SHENZHEN CIPRUN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
Download PDF: