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Tracking initiation method including radial velocity information for a circular motion target

A technology of radial velocity and circular motion, applied in the direction of radio wave reflection/re-radiation, using re-radiation, measuring devices, etc., can solve the problem of limited initial effect of track

Inactive Publication Date: 2015-11-11
袁俊泉 +2
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Problems solved by technology

[0003] Traditional track initiation methods, such as the heuristic rule method, logic-based method, and Hough transform method introduced in Document 1: LeungH, HuZ.Evaluationofmultipletargettrackinginitiationtechniquesinrealradartrackingenvironment. (HT) and improved HT methods only use position measurement information such as distance and azimuth, and the effect of track initiation is limited

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  • Tracking initiation method including radial velocity information for a circular motion target
  • Tracking initiation method including radial velocity information for a circular motion target
  • Tracking initiation method including radial velocity information for a circular motion target

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Embodiment Construction

[0051] In order to further describe the present invention in detail, the implementation steps of the present invention will be explained below in conjunction with the drawings and embodiments.

[0052]Step 1: Suppose a two-dimensional radar is used to track the target, the initial position of the target is (30000m, 30000m), and the initial velocity is , , the angular velocity is ,according to figure 1 The target motion model can simulate the state value of the target by using the discrete equation of horizontal circular motion.

[0053] Step 2: Assuming a multi-frequency continuous wave radar system, the sampling period , range of power , direction finding error , radial velocity measurement error , and the ranging error is constant as , variable case is , based on the target state value generated in step 1, the observation value of the target can be simulated by using the radar observation model.

[0054] Step 3: Using the 3 / 4 track initiation criterion, the...

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Abstract

The invention discloses a tracking initiation method including radial velocity information for a circular motion target. The method comprises the following steps: first, based on motion features, establishing a continuous motion equation of the target, and converting the continuous motion equation of the target to a discrete motion equation; secondly, establishing a radar observing model which includes the radial velocity information in a polar coordinate system; thirdly, based on the features of a multiple frequency cw radar as described that the multiple frequency cw radar can not only obtain distance and angle information, but can also obtain velocity information, designing a tracking initiation gate which includes the radial velocity information; finally, configuring a tracing initiation flow chart which includes the radial velocity information. The method herein is applicable to radar systems which can provide velocity information, such as a multi-frequency cw radar system, a pulse Doppler radar system, etc. The method is also applicable to tracking initiation of a horizontal circular motion target, and can increase the effects of tracking initiation. In addition, the method herein is not only applicable to tracking initiation of horizontal circular motion, but is also applicable to other target motion patterns, and has excellent expansibility and value in popularization and application.

Description

technical field [0001] The invention relates to the problem of track initiation in the field of radar data processing, and is suitable for radar systems that can provide velocity information, such as multi-frequency continuous wave radar systems, pulse Doppler radar systems, etc., and can be used for navigation of horizontal circular moving targets. Track start, improve track start effect. Background technique [0002] Track initiation is the primary problem in target track processing, and the correctness of its initial track is an effective measure to reduce the computational burden brought by the inherent combination explosion of multi-target tracking. If the track start is not correct, it will be impossible to track the target at all. The phrase "Missing by a tiny bit, can make a huge difference" can fully reflect the importance of track start. Moreover, due to the long distance of the target at the beginning of the track, the low detection resolution of the sensor, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/66
CPCG01S13/72
Inventor 袁俊泉尹帅黄忠言
Owner 袁俊泉
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