Title:
ECHO SIGNAL-BASED SPEED MEASUREMENT METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/051992
Kind Code:
A1
Abstract:
An echo signal-based speed measurement method and device, comprising: obtaining echo signals for a detection target, the echo signals comprising a first echo signal and a second echo signal; determining detection point information of the first echo signal; selecting, according to the detection point information of the first echo signal, at least part of a Doppler spectrum from a Doppler spectrum of the second echo signal as a query spectrum; selecting a point corresponding to the detection point information of the first echo signal from the query spectrum as a matching point; and measuring the real speed of the detection target according to the matching point. By determining the detection point information of the first echo signal, the defect that the calculation amount is large due to the fact that all echo signals are determined is overcome, the calculation costs are saved, and redundant information is reduced; a real speed is determined by combining determination of a query spectrum, so that the efficiency of determining the real speed is improved, and the accuracy and reliability of the determined real speed are improved.
Inventors:
ZHU JINTAI (CN)
LAO DAPENG (CN)
LIU JINNAN (CN)
YANG CHEN (CN)
LAO DAPENG (CN)
LIU JINNAN (CN)
YANG CHEN (CN)
Application Number:
PCT/CN2020/114553
Publication Date:
March 17, 2022
Filing Date:
September 10, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G01S13/58
Foreign References:
| CN109932700A | 2019-06-25 | |||
| CN110531348A | 2019-12-03 | |||
| CN104076328A | 2014-10-01 | |||
| US20100176984A1 | 2010-07-15 | |||
| CN105997148A | 2016-10-12 | |||
| CN108761418A | 2018-11-06 |
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
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