Ship target accurate association method based on radar and Beidou data
A radar target and Beidou ship technology, applied in the field of multi-source information fusion, can solve the problems of easy misjudgment and low correlation accuracy, and achieve the effects of strong security, simple calculation, and enlarged radius
Active Publication Date: 2021-05-28
中船鹏力(南京)大气海洋信息系统有限公司
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If this association method is directly used for reference in the Beidou satellite navigation system, the association accuracy will be low and misjudgment will easily occur
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[0063] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific preferred embodiments.
[0064] In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "left side", "right side", "upper", "lower" are based on the orientations or positional relationships shown in the accompanying drawings, and are only For the purpose of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, "first", "second" and the like do not represent components importance, and therefore should not be construed as limiting the invention. The specific dimensions used in this embodiment are only for illustrating the technical solution, and do not limit the protection scope of the present in...
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The invention discloses a ship target accurate association method based on a radar and Beidou data. The method comprises the steps: building a confidence association matching model based on a multi-dimensional factor through employing ship information obtained by a shore-based radar and ship information provided by a Beidou ship-borne terminal, and achieving the accurate association of ship targets in a water area environment with multiple dense targets. The method mainly comprises the following steps: firstly, carrying out coordinate conversion and unification on the radar and Beidou data; then determining the shape and the size of a correlation gate; then, fitting the data by adopting a Catmull-Rom spline interpolation algorithm for three times to realize time calibration of the radar and the Beidou data; establishing a confidence correlation matching model based on multi-dimensional factors; and finally, carrying out association judgment on a result output by the model so as to realize accurate association of the ship target. Compared with a traditional ship target association method based on the radar and AIS data, the method provided by the invention is higher in association accuracy, higher in safety and wider in applicability.
Description
technical field [0001] The invention relates to the field of multi-source information fusion, in particular to a method for accurately associating ship targets based on radar and Beidou data. Background technique [0002] The vigorous development of my country's social economy has driven the increase in the volume of water transport business year by year, and the density of ships in ports and inland waterways has increased sharply. This has also led to the increase of hidden dangers in water traffic safety, the pressure on ship traffic, and the pollution of water environment. In order to ensure the safety of ship navigation and improve shipping efficiency, Vessel Traffic Services (VTS) has been widely used in my country's water traffic management departments. VTS uses multi-source information fusion technology to deeply integrate radar target information and AIS target information (Automatic Identification System, ship automatic identification system), so as to obtain compr...
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Login to View More IPC IPC(8): G01S19/45
CPCG01S19/45Y02A90/30
Inventor 夏亮金家龙石志国孙硕张灿
Owner 中船鹏力(南京)大气海洋信息系统有限公司