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Multi-radar data fusion method and device

A data fusion, multi-radar technology, applied in measurement devices, radio wave reflection/re-radiation, utilization of re-radiation, etc., can solve the problem of large error of the grid method, and achieve the effect of improving the tracking effect

Inactive Publication Date: 2019-12-20
JIANGSU JITRI INTELLIGENT SENSOR RES INST CO LTD
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Problems solved by technology

In reality, the error of the grid method is relatively large

Method used

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  • Multi-radar data fusion method and device
  • Multi-radar data fusion method and device

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Embodiment Construction

[0022] This specific embodiment discloses a multi-radar data fusion method, which includes the following process: setting a reference point in an area that can be covered by each radar, using the coordinate system of one radar as the standard coordinate system, and using the reference point in other radar coordinate systems The conversion relationship between the lower coordinates and the coordinates of the reference point in the standard coordinate system, transforms the coordinates of the data collected by other radars into the standard coordinate system.

[0023] The coordinates of the reference point in other radar coordinate systems, the coordinates of the reference point in the standard coordinate system, and the coordinates of data collected by other radars are all in polar coordinates. The reference point is made of metal material with multiple reflective surfaces at different angles.

[0024] This specific embodiment also discloses a multi-radar data fusion device, in...

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Abstract

The invention discloses a multi-radar data fusion method. The method comprises the steps of providing a reference point in a region which can be covered by each radar, and taking a coordinate system of one radar as a standard coordinate system; and converting coordinates of data collected by other radars into the standard coordinate system by virtue of a conversion relation between the coordinatesof the reference point in other radar coordinate systems and the coordinates of the reference point in the standard coordinate system. The invention further discloses a multi-radar data fusion device. According to the multi-radar data fusion method and the multi-radar data fusion device disclosed by the invention, a grid does not need to be divided, the radars do not need to face oppositely, centralized asynchronous fusion on two sides of the radars with different distances and angular resolutions can be effectively implemented, and the tracking effect on a target, especially a weak target isimproved.

Description

technical field [0001] The invention relates to the field of detection of underground parking lots, in particular to a multi-radar data fusion method and device. Background technique [0002] For multi-radar data fusion, in the prior art, the target motion and measurement equations in the radar polar coordinate system are often established first, and then the spatial grid is used to divide the radar data with different distances and angular resolutions by grid alignment. The measured data are aligned to the same size, and then the centralized asynchronous fusion method is used to fuse the measured data of multiple radars, and the DP / TBD method is used to process the fused data and restore the target trajectory. In this way, it is necessary to divide the radar detection area into several rectangular grids of a specified size. However, the rectangular grid is an ideal condition, and it is difficult to fill the real area with a rectangle in a complex environment such as an unde...

Claims

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Application Information

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IPC IPC(8): G01S7/295G01S13/66
CPCG01S7/295G01S13/66
Inventor 胡友德钱怡恬刘钢孙英豪曹笈许锦龙
Owner JIANGSU JITRI INTELLIGENT SENSOR RES INST CO LTD
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