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Target association method based on multi-base MIMO radar

A target association, multi-base technology, applied in the field of data preprocessing in the information fusion of networked radar, can solve the problems affecting the advantages and potential of multi-base mimo radar, avoid target association errors, reduce the floating range, and improve the stability. Effect

Inactive Publication Date: 2015-11-25
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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Problems solved by technology

The above various target correlation methods are proposed for traditional multi-radar systems. Although they can also be directly applied to T / R-nR mode MIMO radar systems, they have not fully utilized the working characteristics of MIMO radars, which will undoubtedly affect The advantage and potential of multistatic mimo radar

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  • Target association method based on multi-base MIMO radar
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[0040] specific implementation plan

[0041] The above-mentioned content of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments. It should be noted that the application of the above-mentioned method of the present invention is not limited to the following examples.

[0042] In this embodiment, a T / R-R mode bistatic MIMO radar system is adopted, such as figure 1 Shown is the geometric configuration of the T / R-R mode bistatic MIMO radar, and the flow of the target association process is as follows figure 2 As shown, the specific steps are:

[0043] Step 1. Receiving Station Coordinate Transformation

[0044] In the T / R-R bistatic MIMO radar system, the T / R station is the main station, that is, the fusion center, and the R station is the secondary station; the secondary station of the bistatic MIMO radar can measure the line-of-sight angle of the main station, so the angle There is no need for coordinate conver...

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Abstract

The invention belongs to the field of data pretreatment in networking radar information fusion and particularly provides a target association method based on a multi-base MIMO radar. The method comprises steps: a fusion center is firstly arranged in a multi-base MIMO radar system, a measurement on a target by each receiving station is converted into a polar coordinate system in the fusion center, and target measurement parameters are obtained; measurements in the fusion center from each receiving station are associated, distance subtraction serves as a distance test statistic amount and angle subtraction serves as an angle test statistic amount; association thresholds are respectively set for the angle test statistic amount and the distance test statistic amount, and when a tested amount falls in the two thresholds at the same time, association is regarded as successful; and finally, secondary judgment is carried out, when one target measurement measured by a receiving station and multiple target measurements measured by another receiving station are associated successfully at the same time, a target measurement group with the minimal norm of the test statistic amounts is taken as the final association result. Thus, the correct target association probability can be effectively improved, and stability of target association is improved.

Description

technical field [0001] The invention belongs to the field of data preprocessing in networked radar information fusion, relates to a target association part applied to a dual / multi-base MIMO radar target positioning and tracking system, and specifically relates to a target association method based on a multi-base MIMO radar. technical background [0002] The main purpose of radar or radar networking is to make full use of the complementary characteristics of different sensor measurement information, improve the measurement accuracy of the networking system for targets and the detection and tracking capabilities under complex conditions through information fusion, so as to overcome the uncertainty of a single radar and limitations to improve the effectiveness of the entire radar system. Target association is the premise of information fusion, and its essence is to perform target pairing. By analyzing and comparing the measurement results of multiple observation systems, the sa...

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Application Information

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IPC IPC(8): G01S7/41G01S7/02
CPCG01S7/02G01S7/41
Inventor 李军任翠霞邱盛森段翔刘静秋
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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