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Radar Time Synchronization Method and Device

A technology of time synchronization and radar, which is applied in the field of communication, can solve the problems of incapable of data fusion processing and inability to achieve accurate target detection, and achieve the effect of fusion processing

Active Publication Date: 2022-03-22
ENNO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the system time among multiple simultaneous working radars is not synchronized, accurate fusion processing cannot be performed based on the data collected by each radar, so that accurate detection of targets cannot be achieved

Method used

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  • Radar Time Synchronization Method and Device
  • Radar Time Synchronization Method and Device

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Embodiment Construction

[0066] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection of the present invention. scope.

[0067] Such as figure 1 As shown, the embodiment of the present invention provides a radar time synchronization method, including:

[0068] Step 101: Determine the current coordinates and direction angles of each of the at least two radars in the first rectangular coordinate system, wherein the first rectangular coordinate system is a coordinate system...

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Abstract

The present invention provides a radar time synchronization method and device, including: determining the current coordinates and direction angles in the first rectangular coordinate system constructed by each radar in the target area, and constructing the second rectangular coordinate system of each radar; obtaining each The reflection position track of a radar, wherein, the reflection position track is to move the angular reflector according to the preset track, and according to the time sequence of the position coordinates of each strongest reflection point reflected back by the electromagnetic wave of the radar in the second Cartesian coordinate system; The reflection position trajectory of each radar is converted to the conversion position trajectory under the first rectangular coordinate system; the conversion position trajectory corresponding to the target radar in the at least two radars and each radar to be measured is determined according to at least two preset time delays The optimal normalized correlation coefficient is used to determine the time delay to be adjusted for each radar to be tested, and the radar is delayed based on the time delay to be adjusted. This scheme can realize the time synchronization of multiple radars.

Description

technical field [0001] The invention relates to the technical field of communications, in particular to a radar time synchronization method and device. Background technique [0002] Radar technology has been widely used. In daily life, we can use radar to realize weather forecast, traffic control, navigation and many other applications. [0003] At present, when radar is used to detect and track targets in an area, multiple radars are usually used to work simultaneously. However, when the system time of multiple simultaneous working radars is not synchronized, accurate fusion processing cannot be performed based on the data collected by each radar, so that accurate detection of targets cannot be achieved. Contents of the invention [0004] Embodiments of the present invention provide a radar time synchronization method and device, which can realize time synchronization of multiple radars. [0005] In a first aspect, the present invention provides a radar time synchroniza...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/02G01S13/72
CPCG01S7/02G01S13/72
Inventor 付思超廖瑞军
Owner ENNO TECH CO LTD
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