Title:
TARGET SIGNAL DETECTION METHOD AND DEVICE, UNMANNED AERIAL VEHICLE, AND AGRICULTURAL UNMANNED AERIAL VEHICLE
Document Type and Number:
WIPO Patent Application WO/2019/119195
Kind Code:
A1
Abstract:
Provided are a target signal detection method and device, an unmanned aerial vehicle, and an agricultural unmanned aerial vehicle. The method comprises: acquiring multiple detection signals of a detection device; taking each detection signal of the multiple detection signals as a signal to be detected, and determining, according to a detection signal adjacent to the signal to be detected, a threshold value corresponding to the signal to be detected; and determining, according to the threshold value corresponding to the signal to be detected, whether the signal to be detected comprises a signal reflected by a target object. In the embodiments of the present invention, a threshold value corresponding to a signal to be detected is determined according to a detection signal adjacent to the signal to be detected, so that each detection signal can correspond to a respective threshold value, instead of having a fixed threshold value; and whether each detection signal comprises a signal reflected by a target object is detected according to the threshold value respectively corresponding to each detection signal, so that clutter is not misinterpreted as an echo reflected by the target object because the strength of the clutter exceeds the fixed threshold value, thereby improving the detection precision of the target object, and reducing the false alarm rate.
Inventors:
WANG JUNXI (CN)
WANG CHUNMING (CN)
WU XUMIN (CN)
SHI RENLI (CN)
WANG CHUNMING (CN)
WU XUMIN (CN)
SHI RENLI (CN)
Application Number:
PCT/CN2017/116888
Publication Date:
June 27, 2019
Filing Date:
December 18, 2017
Export Citation:
Assignee:
SZ DJI TECHNOLOGY CO LTD (CN)
International Classes:
G01S7/36; G06V20/13; G01S13/88; G06V20/17
Foreign References:
| CN102331572A | 2012-01-25 | |||
| CN105116396A | 2015-12-02 | |||
| CN106019251A | 2016-10-12 | |||
| CN104991234A | 2015-10-21 | |||
| CN105158742A | 2015-12-16 | |||
| US20120268313A1 | 2012-10-25 |
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
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