Angle measurement information-based multi-target identity identification method

An identification method and identity technology, applied in the field of measurement, can solve the problems of the likelihood method and the layered correlation algorithm with a large amount of computation, and the dependence on target track information or prior information

Active Publication Date: 2018-01-19
BEIJING INST OF ELECTRONICS SYST ENG
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Problems solved by technology

[0004] The object of the present invention is to provide a multi-target identity recognition method based on angle measurement information for the problem of target identity recognition based on angle measurement information, so as to avoid the existing closest field method and joint probability data association method from distorting the target

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  • Angle measurement information-based multi-target identity identification method
  • Angle measurement information-based multi-target identity identification method
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[0049] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0050] The multi-target identity recognition method based on angle measurement information provided in this embodiment uses a test statistic based on the minimum distance between angle measurement sight lines of an observation station. The target two-dimensional angle measurement data of two observation stations at a certain moment can form two angle measurement sight lines in space. If the two angle measurement data come from the same target, the two lines of sight intersect at the position of the target; otherwise, the t...

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Abstract

The present invention discloses an angle measurement information-based multi-target identity identification method. The method comprises the steps of targeting all targets observed by all observationstations to identity recognition, wherein the identity identification for two targets observed by two observation stations is as follows: establishing a target angle measurement model; calculating theordinates of observation stations in an earth-centered and earth-fixed coordinate system; calculating unit vectors for the angle measurement lines of two targets; calculating the length of a common vertical line between the angle measurement lines of the two targets; calculating a detection threshold for checking the test statistics; and conducting the identity identification for two targets. The method is small in calculation amount and high in accuracy. The high identification accuracy is realized in a complex environment based on the method.

Description

technical field [0001] The invention relates to the field of measurement technology. More specifically, it relates to a multi-target identity recognition method based on angle measurement information. Background technique [0002] Through high-precision angle measuring equipment to measure the angle of the target at multiple observation stations, and use the intersection of each angle measuring line of sight to calculate the position of the target, it has been widely used in various military and civilian fields. The correct identification of target identity based on the angle measurement data of the observation station is the premise of the accuracy of this cross-location method. The essence of this problem is to eliminate false intersections from the intersection combinations of multiple angle measurement sights from multiple targets of multiple informants, and find out the correct combination belonging to the same target, that is, target identity recognition. For this pr...

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Application Information

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IPC IPC(8): G01S3/782G01S5/16
Inventor 许然卓志敏郑剑锋李林峰迟鹏
Owner BEIJING INST OF ELECTRONICS SYST ENG
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