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Radio detection ranging method and system based on amplitude-distance calculation

A distance measuring method and radio technology, applied in the direction of radio wave measurement system, measurement device, using re-radiation, etc., can solve the problem of inability to signal passive positioning

Pending Publication Date: 2020-11-13
HUNAN NOVASKY ELECTRONICS TECH
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  • Summary
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a radio detection ranging method and system based on amplitude-distance calculation to solve the technical problem that passive positioning of signals cannot be performed quickly

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  • Radio detection ranging method and system based on amplitude-distance calculation
  • Radio detection ranging method and system based on amplitude-distance calculation
  • Radio detection ranging method and system based on amplitude-distance calculation

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Embodiment Construction

[0029] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0030] figure 2 It is a schematic diagram of the radio detection and ranging model built based on the antenna pattern in this embodiment, and this embodiment is described based on this model. The radio detection ranging model consists of the source ( figure 2 In is the incident direction of the signal source) and the multi-channel receiver acquisition system ( figure 2 The middle is the detection receiver), and there is a wireless channel path loss when the signal of the source is transmitted to the multi-channel receiver. In the following embodiments, the path loss of the wireless channel is replaced by the Friris atmospheric attenuation loss in the ideal state. In the ENU coordinate system, the M-channel receiver is set up at the origin of th...

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Abstract

The invention discloses a radio detection distance measurement method and system based on amplitude-distance calculation. The method comprises the steps of: detecting an information source, and obtaining an amplitude value mean value through detection and frequency measurement after the existence of a signal of the information source is determined; searching for a channel with a maximum amplitudevalue by traversing the channels, and obtaining an amplitude value mean value of the channel with a maximum amplitude value as a receiving amplitude of a receiver; and resolving through a distance resolving formula to obtain the distance of the information source. According to the invention, a coarse ranging function of a known information source can be rapidly realized.

Description

technical field [0001] The present invention relates to the field of radio detection and distance measurement, in particular to a method and system for radio detection distance measurement based on amplitude-distance calculation. Background technique [0002] With the rapid development of radio detection technology, a single direction-finding technology no longer meets the needs of radio detection in wartime. Passive positioning technology has become a research hotspot in radio detection technology, and radio detection and ranging technology has become the key to positioning. [0003] Traditional radio detection usually uses the amplitude ratio method or the interferometric method for direction finding. In the real scene, the amplitude ratio direction finding technology has higher requirements for the consistency of multi-channel antennas, and the interferometric direction finding technology has higher requirements for the cross baseline length and multi-channel phase synchro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S11/02
CPCG01S11/02
Inventor 吴方来李征王生水韩乃军韩明华
Owner HUNAN NOVASKY ELECTRONICS TECH