Multi-target track initiation method based on Hough transform

A track initiation, multi-target technology, applied in radio wave measurement systems, instruments, etc., can solve problems such as the need for four-dimensional information, achieve good anti-clutter performance, reduce false tracks, and start fast.

Active Publication Date: 2019-04-12
SHANGHAI RADIO EQUIP RES INST
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Problems solved by technology

This method will have a large number of dot-trace combinations, requires four-d

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  • Multi-target track initiation method based on Hough transform
  • Multi-target track initiation method based on Hough transform
  • Multi-target track initiation method based on Hough transform

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Embodiment Construction

[0050] The present invention will be further elaborated below by describing a preferred specific embodiment in detail in conjunction with the accompanying drawings.

[0051] A kind of Hough transform-based multi-object track initiation method, comprises the following steps:

[0052] S1, perform Hough transform on the frequency gate information of the measurement point traces in the sliding window for M scan periods, and project it into the parameter space;

[0053] S2, find the accumulation point of the frequency dimension greater than the threshold in the parameter space, and record the coordinates;

[0054] S3, according to the coordinate information of the accumulation points in the frequency dimension, determine the associated points that contribute to it in each scanning cycle;

[0055] S4. Delete redundant frequency dimension accumulation points of the same target according to the associated point information of frequency dimension accumulation points;

[0056] S5, per...

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Abstract

The invention discloses a multi-target track initiation method based on Hough transform, which comprises the following steps: S1, performing Hough transform on frequency gate information of measurement point traces in M scanning periods in a sliding window, and projecting the frequency gate information to a parameter space; S2, finding a frequency dimension accumulation point greater than a threshold value in the parameter space, and recording coordinates; S3, determining an association point contributing to the frequency dimension accumulation point in each scanning period according to the coordinate information of the frequency dimension accumulation point; S4, deleting redundant frequency dimension accumulation points of the same target according to the association point information ofthe frequency dimension accumulation points; S5, conducting distance dimension Hough transform on the remaining frequency dimension accumulation points, and projecting the remaining frequency dimension accumulation points to the parameter space; and S6, finding a distance dimension accumulation point greater than a threshold value in the parameter space, and carrying out reliability judgment on the association point.

Description

technical field [0001] The invention relates to the field of radar data processing, in particular to a method for starting multi-target track based on Hough transform. Background technique [0002] Track initiation is used to solve the problem of how to correctly interconnect point traces in the initial stage of target tracking. An effective track initiation method is the key to accurate target tracking. The difficulty of track initiation is that in the initial stage, the distance of the target is usually far away. At this time, the signal-to-noise ratio of the target is low, and the measurement accuracy is poor, and the existence of clutter will also have a great impact on the initial result. . [0003] According to the method of data processing, track initiation can be divided into two categories: sequential processing method and batch processing method. The sequential processing method mainly includes the logic method, the modified logic method, etc., and the batch pro...

Claims

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Application Information

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IPC IPC(8): G01S7/02
CPCG01S7/021
Inventor 王鹤雷杜科马宪超蒋兵兵董千里李森王佳
Owner SHANGHAI RADIO EQUIP RES INST
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