Multi-target association method and device

A multi-target and target technology, applied in the field of data fusion, can solve problems such as low correlation accuracy and unsatisfactory requirements

Active Publication Date: 2019-01-04
36TH RES INST OF CETC
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[0003] The present invention provides a multi-target association method and device to solve the technical p

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[0057] The present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments. These examples should be understood as only for illustrating the present invention but not for limiting the protection scope of the present invention. After reading the content of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent changes and modifications also fall within the scope of protection claimed by the present invention.

[0058] The current traditional association method is mainly to associate the pure orientation information after unifying the coordinate system. Since the distance information of the target cannot be obtained directly, the azimuth information of the sonar target cannot be unified into the coordinate system of the radar system. As shown in Table 1, Table 1 shows the results of multi-target association using only azimuth information. I...

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Abstract

The invention discloses a multi-target association method and device. The method includes obtaining azimuth observation sequences corresponding to targets under a first observation platform and a second observation platform; performing track invariant information estimation by utilizing a Kalman filtering algorithm and the azimuth observation sequences so that course information of a target can beobtained; and utilizing the azimuth observation sequences and the track invariant information to calculate degrees of association, performing ordering on the degrees of association, determining the association of the track of the target observed by the first observation platform and the track of the corresponding target observed by the second observation platform when the largest degree of association is larger than a preset threshold value, and outputting association results. Compared with traditional association algorithms only using azimuth information, the method and device can have higher association accuracy.

Description

technical field [0001] The present invention relates to the technical field of data fusion, in particular to a multi-object association method and device. Background technique [0002] Network information warfare is the trend of modern warfare, and multi-sensor fusion is one of the key technologies. Since the multi-sensor fusion technology uses different types of sensors, it has good robustness, can effectively expand the time and space coverage capabilities, and reduce the degree of ambiguity of the system. Because of its many advantages, multi-sensor fusion technology is also widely used in the fields of underwater acoustics and radar. It is well known that the premise of multi-sensor data fusion is data association. The target azimuth tracking information obtained through radar, sonar and other platforms is preprocessed to unify these measurement information into the same coordinate system and calculate the synthesized track. . The difficulty of multi-sensor fusion is ...

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Application Information

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IPC IPC(8): G01S13/86G01S13/58G01S15/58
CPCG01S13/58G01S13/862G01S15/58
Inventor 孙伟韩煜周青
Owner 36TH RES INST OF CETC
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