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A Target Association Method Based on Multistatic MIMO Radar

A target association, multi-base technology, which is applied in the field of data preprocessing in networked radar information fusion, can solve the problems affecting the advantages and potential of multi-base mimo radar, avoid target association errors, improve the probability of correct target association, and improve stability. improved effect

Inactive Publication Date: 2018-05-18
UNIV OF ELECTRONICS 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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  • A Target Association Method Based on Multistatic MIMO Radar
  • A Target Association Method Based on Multistatic MIMO Radar
  • A Target Association Method Based on Multistatic MIMO Radar

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Embodiment Construction

[0040] Specific implementation plan

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

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

[0043] Step 1. Receiving station coordinate conversion

[0044] In the T / RR bistatic MIMO radar system, the T / R station is the main station, which 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 primary station, so the angle There is no need to perform coordinate conversion, and the conversion of dist...

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Abstract

The invention belongs to the field of data preprocessing in networked radar information fusion, and specifically provides a target association method based on multi-base MIMO radar. In the method, a fusion center is first set in the multi-base MIMO radar system, and each receiving station is connected to the target The measurement is converted to the polar coordinate system of the fusion center to obtain the target measurement parameters; then the measurements from each receiving station in the fusion center are correlated, and the distance subtraction is used as the distance test statistic, and the angle subtraction is used as the angle test statistic The correlation threshold is set separately for the angle and distance test statistics. When the tested quantity falls into the two thresholds at the same time, the correlation is determined to be successful. Finally, a secondary discrimination is carried out. When the receiving station measures a target measurement and another receiving station When multiple target measurements are associated successfully at the same time, a group of target measurements with the smallest norm of the test statistic is taken as the final association result. The invention effectively improves the probability of correct association of objects; and the stability of object association is improved.

Description

Technical field [0001] The invention belongs to the field of data preprocessing in the information fusion of networked radars, relates to a target correlation part applied to a dual / multistatic MIMO radar target positioning and tracking system, and is specifically a target correlation method based on a multistatic MIMO radar. technical background [0002] The main purpose of radar or radar networking is to make full use of the complementary characteristics of the measurement information of different sensors, and improve the measurement accuracy of the networking system on the target and the detection and tracking ability 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 prerequisite for information fusion. Its essence is to pair targets. By analyzing and comparing the measurement results of multiple observation systems, the same...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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 ELECTRONICS SCI & TECH OF CHINA