Title:
SIGNAL ENHANCEMENT METHOD AND APPARATUS, OPA LIDAR, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2023/109375
Kind Code:
A1
Abstract:
The present application is suitable for the technical field of signal processing, and provides a signal enhancement method and apparatus, an OPA lidar, and a storage medium. The signal enhancement method comprises: obtaining first frequency spectrums respectively corresponding to N difference frequency signals for a target detection object, each first frequency spectrum comprising a frequency spectrum serial number and a frequency spectrum amplitude corresponding to the frequency spectrum serial number, and N being an integer greater than 1; performing point multiplication operation on the frequency spectrum amplitudes having the same frequency spectrum serial number in the N first frequency spectrums to obtain second frequency spectrums having a signal-to-noise ratio of X1
N, wherein X1 is the signal-to-noise ratio of a single first frequency spectrum; and determining frequencies of the difference frequency signals according to the second frequency spectrums. The present application can improve the accuracy of the frequency measurement results of the difference frequency signals.
Inventors:
WANG ZHEN (CN)
RU HONGWU (CN)
XU YANG (CN)
DENG YONGQIANG (CN)
RU HONGWU (CN)
XU YANG (CN)
DENG YONGQIANG (CN)
Application Number:
PCT/CN2022/130634
Publication Date:
June 22, 2023
Filing Date:
November 08, 2022
Export Citation:
Assignee:
VANJEE TECH CO LTD (CN)
International Classes:
G01S17/08; G01S7/48
Foreign References:
| CN109782244A | 2019-05-21 | |||
| CN111239705A | 2020-06-05 | |||
| CN108872962A | 2018-11-23 | |||
| CN112346069A | 2021-02-09 | |||
| JP2017156136A | 2017-09-07 |
Attorney, Agent or Firm:
SHENZHEN ZHONGYI UNION INTELLECTUAL PROPERTY AGENCY CO.,LTD. (CN)
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