Multi-radar plot fusion method

A technology of point trace fusion and radar point trace, which is applied in the direction of reflection/re-radiation of radio waves, utilization of re-radiation, measurement devices, etc., can solve the problems of low performance, target detection distance, insufficient tracking accuracy of maneuvering target tracking performance, etc. To achieve the effect of improving the discovery distance, improving the tracking accuracy, and broad application prospects

Inactive Publication Date: 2017-05-17
TSINGHUA UNIV
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Problems solved by technology

[0006] However, the existing point-track fusion technology has a small selection range, and most of them have low performance, and

Method used

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  • Multi-radar plot fusion method

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Embodiment Construction

[0037] The specific implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0038] Such as figure 1 The shown multi-radar track fusion algorithm flow chart of the present invention includes the following steps:

[0039] Step 1: Receive the measurement data of each radar, perform spatial registration on the data, and unify the measurement coordinate system.

[0040] Such as figure 2 A schematic diagram of the spatial alignment is shown. Assuming that the fusion center is the coordinate origin, the coordinates of a certain radar (assumed to be radar 1) are [a, b] (in the Cartesian coordinate system), and the target measurement information obtained by this scanning radar is It should be noted that the measurement z' is obtained in the coordinate system where the radar is the origin, so it is necessary to convert the measurement z' of the radar to the coordinate system where the fusion coordinates are t...

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Abstract

The invention belongs to the technical field of multi-radar networking plot fusion, and particularly relates to a multi-radar plot fusion method. The method comprises the following steps of 1, receiving multiple pieces of radar measurement data, conducting space alignment and setting a uniform measurement coordinate system; 2, judging whether the radar measurement data all contains target Doppler velocity information or not, if yes, executing the step 3, and otherwise, executing the step 6; 3, conducting time alignment; 4, conducting plot association and plot fusion to obtain fused plot information; 5, conducting track association with a formed track and filtering updating by utilizing the fused plot information, and executing the step 7; 6, sorting the data by time, and conducting track association with the formed track and filtering updating in sequence by utilizing the sorted data; 7, conducting track initiation by utilizing the radar data which does not participate in track association; 8, outputting a track result. The multi-radar plot fusion method is beneficial to prolonging the target detection distance and improving the tracking precision and the maneuvering target tracking performance.

Description

technical field [0001] The invention belongs to the technical field of point-trace fusion of multi-radar networking in data fusion, and in particular relates to a multi-radar point-trace fusion method. Background technique [0002] In order to adapt to the development of modern information technology and warfare forms, multi-sensor information fusion technology has developed rapidly in the past 20 years, and multi-sensor data fusion systems for complex application backgrounds have emerged as the times require, and as an emerging discipline, in modern C3I (command, Control, communication and intelligence) systems and various weapon platforms are widely used. [0003] Data fusion is to make full use of multi-sensor resources in different time and space, and combine redundant or complementary data information from different platform sensors in space and time according to certain criteria to obtain a consistent description of the measured object. And understanding, so that the ...

Claims

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Application Information

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IPC IPC(8): G01S13/87G01S13/72G06K9/62
CPCG01S13/723G01S13/87G06F18/25
Inventor 王力刘雅琦汤俊潘建郑桂妹张云雷杨玄
Owner TSINGHUA UNIV
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