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Method and device for acquiring position information of target object

A technology of target object and position information, which is applied in the direction of measuring device, satellite radio beacon positioning system, electromagnetic wave reradiation, etc., can solve the problem of inaccurate GPS coordinates, achieve the effect of accurate height coordinates and improve the accuracy of acquisition

Pending Publication Date: 2019-05-17
苏州理工雷科传感技术有限公司
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Problems solved by technology

However, the GPS coordinates obtained in this way are not accurate, so how to improve the accuracy of obtaining the location information of the target object is a problem that needs to be solved at present

Method used

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  • Method and device for acquiring position information of target object
  • Method and device for acquiring position information of target object
  • Method and device for acquiring position information of target object

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Embodiment Construction

[0043] The existing technology scans the target object by radar, obtains the position of the target object relative to the radar according to the scanning result, and then performs coordinate conversion according to the position of the target relative to the radar and the position of the radar itself, thereby obtaining the GPS coordinates of the target object, and then according to The GPS coordinates obtained by this coordinate conversion method are not accurate, because the assumption of this method is that the target area scanned by the radar is flat and has no ups and downs. However, if the target area is not flat, for example, some airport runways have slopes, in this case, the GPS coordinates of the target object obtained through the above-mentioned coordinate transformation are inaccurate. Since the GPS coordinates include longitude coordinates, latitude coordinates and altitude coordinates, in this scenario it specifically means that the altitude coordinates in the GPS ...

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Abstract

The embodiment of the application discloses a method and device for acquiring position information of a target object, and fulfills the aim of improving accuracy of acquiring the position informationof the target object. The method comprises the steps of: acquiring longitude coordinates and latitude coordinates of the target object, which are obtained by utilizing a radar to detect a position ofthe target object; and according to the longitude coordinates and the latitude coordinates of the target object and a height coordinate function, determining height coordinates corresponding to the longitude coordinates and the latitude coordinates of the target object, wherein the height coordinate function is a function obtained by fitting according to longitude coordinates, latitude coordinatesand height coordinates of each of a plurality of calibration points, and both the calibration points and the target object are positioned in a wave beam coverage range of the radar.

Description

technical field [0001] The present application relates to the field of environmental monitoring, in particular to a method and device for acquiring location information of a target object. Background technique [0002] Radar (radar) is an electronic device that uses electromagnetic waves to detect the position of a target object. Specifically, the radar can obtain the position information of the target object relative to the electromagnetic wave emission point by sending electromagnetic waves to the target object and receiving the echoes thereof. In some application scenarios, it is very important to obtain accurate location information of the target object. For example, foreign objects (Foreign Object Debris, FOD) on the airport can be very deadly to the aircraft. A bird or a small piece of plastic sheet sucked into the engine of the aircraft may cause an air stop. A small screw or piece of metal or even a sharp stone can The tires that may puncture the aircraft may cause...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/42G01S19/40G01S13/06G01S17/06
Inventor 王宏宇彭璐江志远于慧
Owner 苏州理工雷科传感技术有限公司
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