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Narrowband radar target tracking method based on deep long short-term memory network

A radar target tracking, long-term and short-term memory technology, applied in the field of communication, can solve the problems of lost target, increase of tracking filtering error, influence, etc., to achieve the effect of improving filtering accuracy

Active Publication Date: 2019-01-11
XIDIAN UNIV +1
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Problems solved by technology

The disadvantage of this method is that there is only one discrete nonlinear dynamic system model that has been established. In practical applications, if the target motion does not conform to it, problems such as filter mismatch and target loss are likely to occur.
The disadvantage of this method is that the observation error will affect the accuracy of the calculation of the target's turning angular rate, and then affect the judgment of whether the target is turning or not. A model approximation error will increase, making the tracking filter error increase

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  • Narrowband radar target tracking method based on deep long short-term memory network
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  • Narrowband radar target tracking method based on deep long short-term memory network

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings.

[0037] refer to figure 1 , to further describe the specific steps of the present invention.

[0038] Step 1, construct a training data set composed of various sports types.

[0039] Using the range cell formula, calculate the total number of range cells N in the narrowband radar observation scene r .

[0040] The distance unit formula is as follows:

[0041]

[0042] Among them, N r Indicates the total number of distance units in the narrowband radar observation scene, c indicates the speed of light, B indicates the bandwidth of the narrowband radar transmission signal, Δρ indicates the distance range of narrowband radar observation, Δθ indicates the azimuth range of narrowband radar observation, θ 3dB Indicates the 3dB lobe width of the narrowband radar transmitted signal.

[0043] Using the construction method of the target trajectory, construct 10N r The t...

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Abstract

The invention discloses a narrowband radar target tracking method based on a deep long short-term memory network, which mainly aims to solve the problem of effective tracking caused by mismatch of a tracked target motion type and a preset target motion type in narrowband radar target tracking. The implementation steps of the invention are as follows: (1) constructing a training data set composed of various motion types; (2) building a deep long short-term memory network; (3) normalizing the training set; (4) training the deep long short-term memory network; and (5) performing narrowband radartarget tracking. According to the narrowband radar target tracking method based on the deep long short-term memory network, effective tracking with higher accuracy for targets of various motion typesand maneuvering targets can be implemented.

Description

technical field [0001] The invention belongs to the technical field of communication, and further relates to a narrow-band radar target tracking method based on a deep long-short-term memory network in the technical field of narrow-band radar communication. The invention can be used to track a single moving target in the target data sequence observed by narrow-band radar, and can realize effective tracking of multiple moving targets. Background technique [0002] The main task of moving target tracking under narrowband radar observation is to extract the real state of the target in each frame echo from the continuous observation of the target by narrowband radar. With the deepening understanding of the field of narrowband radar communication, moving target tracking has been widely used and developed in this field, and there are already a large number of tracking algorithms to realize single moving target tracking. However, due to the uncertainty of the target motion type, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/66G01S13/70
CPCG01S13/66G01S13/70
Inventor 刘宏伟高畅周生华王彤
Owner XIDIAN UNIV
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