Title:
SIGNAL JAMMING CIRCUIT AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/184197
Kind Code:
A1
Abstract:
A signal jamming circuit (200) and a device for use in jamming a navigation signal of an unmanned aerial vehicle, the navigation signal being GPS, GLONASS or BD multimode. The signal jamming circuit (200) comprises: a control module (1), a frequency synthesizer module (2), a power amplifier circuit (4), and an antenna (5). The frequency synthesizer module (2) is used for generating a jamming signal. The control module (1) is connected to the frequency synthesizer module (2). The control module (1) is used for controlling the frequency of the jamming signal to switch between the navigational frequencies of at least two modes of GPS, GLONASS, and BD multimode. The jamming signal is transmitted to the antenna (5) via the power amplifier circuit (4). The signal jamming circuit (200) is capable of outputting jamming signals of different frequency bands at different time periods, thus implementing the jamming of navigation signals of at least two modes of GPS, GLONASS, and BD multimode, preventing an unmanned aerial vehicle from positioning precisely, and providing increased jamming efficiency.
Inventors:
CHEN TAO (CN)
TANG YIJUN (CN)
DENG RENQIN (CN)
TANG YIJUN (CN)
DENG RENQIN (CN)
Application Number:
PCT/CN2017/079688
Publication Date:
October 11, 2018
Filing Date:
April 07, 2017
Export Citation:
Assignee:
SZ DJI TECHNOLOGY CO LTD (CN)
International Classes:
H04B15/00
Foreign References:
| CN101944958A | 2011-01-12 | |||
| CN203554399U | 2014-04-16 | |||
| CN104333433A | 2015-02-04 | |||
| US20120196525A1 | 2012-08-02 |
Attorney, Agent or Firm:
BEIJING BESTIPR INTELLECTUAL PROPERTY LAW CORPORATION (CN)
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