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Radar target tracking method

A technology of radar target tracking and target tracking, which is applied in the field of radar target tracking, and can solve the problems of increased filtering model error, loss of tracking, etc.

Active Publication Date: 2020-05-12
南京鹰目电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the models in the prior art cannot fully meet the needs of specific use, and there are problems of increased errors or loss of tracking caused by the mismatch between the filtering model and the target motion model due to the maneuvering of the target.

Method used

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Embodiment 1

[0106] Such as figure 1 Shown is a flow chart of a radar target tracking method, and the method specifically includes the following steps:

[0107] The first step is to establish a radar target tracking model library, which contains at least one target tracking model;

[0108] The second step is to initialize the target tracking model in S1, and initialize the combined strategy of the model to obtain the initialized combined target tracking model;

[0109]The 3rd step, k (k=1,2...) obtains the target information that radar detects at all times, and described target information comprises one or more in the speed of motion of target, the distance of target from radar, the motion acceleration of target;

[0110] The fourth step is to estimate the tracking target information at time k+1 according to the target information at time k (k=2,3...) detected by the radar in S3, the external control information, and the combined target tracking model at time k, and obtain k+1 time track...

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Abstract

The invention provides a radar target tracking method which is characterized by comprising the following steps: establishing a radar target tracking model library; initializing the target tracking model in S1, and initializing a combination strategy of the model to obtain an initialized combined target tracking model; obtaining target information detected by the radar at the moment k(k = 1, 2...),wherein the target information comprises one or more of the moving speed of a target, the distance between the target and the radar and the moving acceleration of the target; estimating tracking target information at k+1 moment to obtain a k+1 moment tracking target information prediction value and a k+1 moment combined target tracking prediction model; calculating a joint tracking gate; and obtaining a tracking target information optimization value at the k+1 moment and a combined target tracking optimization model at the k+1 moment. According to the radar target tracking method provided bythe invention, the target tracking precision is improved.

Description

technical field [0001] The invention relates to the field of target tracking, in particular to a radar target tracking method. Background technique [0002] With the rapid development of science and technology, the tracking and prediction of the maneuvering target's motion state is a necessary means to estimate the target's motion parameters at present and in the future. Due to the variety of motion characteristics of the maneuvering target, it is difficult to accurately describe the motion state of the target using a single fixed model, so it is necessary to use multiple models to describe the motion state of the maneuvering target. [0003] At present, the multi-model methods for predicting the motion state of maneuvering targets include: generalized pseudo-Bayesian, interactive multi-model, variable structure multi-model algorithm, etc. The interactive multi-model is based on the generalized pseudo-Bayesian algorithm, through the Markov probability transition matrix, whi...

Claims

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Application Information

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IPC IPC(8): G01S13/72
CPCG01S13/723Y02T10/40
Inventor 王昊徐达龙王岩徐文文权双龙张丹妍
Owner 南京鹰目电子科技有限公司
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