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Direction-finding device and method

A technology of a direction finding device and a control device, which is applied in the field of communication, can solve the problem that a satellite positioning system cannot achieve positioning, etc., and achieves the effect of improving the level of security assurance, rapid response capability, and improving combat effectiveness.

Inactive Publication Date: 2008-06-25
SHENZHEN POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the existing technology cannot achieve positioning under the condition that the satellite positioning system is unavailable, the present invention provides a direction finding device and a direction finding method with better diffraction ability and longer communication distance

Method used

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  • Direction-finding device and method
  • Direction-finding device and method

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] Please refer to figure 1 with figure 2 , figure 1 It is a structural diagram of the airborne troops massing communication system; figure 2 It is a structural schematic diagram of the direction finding device of the present invention. The airborne troops massing communication system 100 includes a central control device 1 and 50 to 100 direction finding devices 2. The central control device 1 continuously transmits radio signals to the direction finding device 2. The direction finding device 2 transmits radio signals according to the received radio signals. The signal is used to measure the direction angle between the central control device 1 and the direction-finding device 2 , and at the same time, the central control device 1 issues instructions to the direction-finding device 2 .

[0022] The direction finding device 2 is used to receive...

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Abstract

A direction-finding device is used to transmit radio signal uninterruptedly in the control device of a receiving center, and comprises a first radio frequency receiving unit and a second radio frequency receiving unit which are symmetrical, a first antenna and a second antenna respectively connected with the first radio frequency receiving unit and the second radio frequency receiving unit, a frequency synthesizer, a local oscillation circuit, a baseband signal processing unit and a control unit, wherein, the signal, which is received by the first antenna and the second antenna and is processed by the first radio frequency receiving unit and the second radio frequency receiving unit, is provided to the frequency synthesizer, the local oscillation circuit and the baseband signal processing unit; the processed signal is provided to the control unit; finally, the control unit, according to the field intensity signal of the first radio frequency receiving unit and the second radio frequency receiving unit, calculates the direction angle between the control device of the center and the direction-finding device. The invention can realize remote positioning and orientation measurement in the absence of a satellite positioning system along with high measurement precision and strong diffraction capability. Moreover, the invention also provides a direction-finding method.

Description

【Technical field】 [0001] The invention relates to the communication field, in particular to a direction finding device and a direction finding method thereof. 【Background technique】 [0002] At present, the general navigation and positioning method is to use satellite positioning systems, including the Global Positioning System (Global Position System, GPS) of the United States, the Global Navigation Satellite System (Global Navigation Satellite System, GLONASS) of Russia and the navigation and communication satellite ( Navigation Communication Satellites, NAVSAT) system. [0003] In the field of military operations, the tactical assembly of foreign airborne troops mainly uses a handheld walkie-talkie integrated with a GPS receiver. The handheld walkie-talkie does not distinguish between commanders and ordinary team members, but can transmit the position data of team members to each other, so as to achieve peer-to-peer positioning, and the positioning accuracy is also high....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S3/14G01S3/28
Inventor 胡启龙夏继媛
Owner SHENZHEN POLYTECHNIC
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