Title:
MULTICOPTER WITH RADAR SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/135371
Kind Code:
A1
Abstract:
A multicopter having a radar mounted therein is provided. A multicopter includes: a plurality of motors to respectively rotate three or more rotors; and a radar system to transmit and receive a signal wave and detect a target by using the signal wave. An object detection apparatus in the radar system transmits and receives a signal wave to perform a target detecting process. An antenna element is in a position to receive the transmission wave reflected off a rotor (a rotor-originated reflected wave). The signal wave received at the antenna element is inclusive of a target-originated reflected wave reflected off a target and a rotor-originated reflected wave. The object detection apparatus determines whether or not a frequency band satisfying a predefined condition for identifying a frequency peak is contained in a frequency spectrum of the signal wave as received by the antenna element, and determines a peak of a frequency band satisfying the predefined condition to be a frequency of the target-originated reflected wave.
Inventors:
ICHINOSE TAKESHI (JP)
KAMO HIROYUKI (JP)
KIRINO HIDEKI (JP)
KITAMURA HIDEAKI (JP)
KAMO HIROYUKI (JP)
KIRINO HIDEKI (JP)
KITAMURA HIDEAKI (JP)
Application Number:
PCT/JP2017/003789
Publication Date:
August 10, 2017
Filing Date:
February 02, 2017
Export Citation:
Assignee:
NIDEC ELESYS CORP (JP)
WGR CO LTD (JP)
WGR CO LTD (JP)
International Classes:
G01S13/52; B64C27/08; B64C39/02; B64D47/00; B64D47/08; G01S13/34; G01S13/933; G01S13/935
Foreign References:
| US20140139366A1 | 2014-05-22 | |||
| JP2015133004A | 2015-07-23 |
Other References:
MOAVENI, MAHMOOD K. ET AL.: "Rotating Blades Radio Interference in a Helicopter-Borne CW Doppler Radar", IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS, vol. AES-17, no. 1, January 1981 (1981-01-01), pages 72 - 82, XP011166774
Attorney, Agent or Firm:
OKUDA Seiji (JP)
Download PDF: