Object plot clotting method of radar echo data

A technology of target traces and echo data, which is applied to radio wave measurement systems, instruments, etc., can solve the problems of splitting of target traces, many false traces, and the selection of threshold values ​​cannot be too low, so as to improve the phenomenon of splitting, The effect of controlling the number of dots and the number of flexible dots

Active Publication Date: 2017-07-04
XIDIAN UNIV
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Problems solved by technology

[0004] The main problems of spot condensing at this stage are how to accurately distinguish target spots in complex environments, and how to improve the method of spot condensing processing under different radar systems
The trace agglomeration method based on the sliding window method is a commonly used method of trace agglomeration. The main problem is that when the target end threshold is large, the target trace will be split, and the split of the target in

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  • Object plot clotting method of radar echo data
  • Object plot clotting method of radar echo data
  • Object plot clotting method of radar echo data

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Embodiment Construction

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0047] The development of radar technology requires the radar system to provide higher target parameters. After the antenna beam scans the target, the echo data will be split after signal processing and target detection, which can be divided into distance split and azimuth split. For the two-coordinate radar, point trace condensation is the extraction of primary information (range and azimuth) of the target. Usually, a binary sliding window detector is used to...

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Abstract

The invention belongs to the technical field of radar signal processing, and discloses an object plot clotting method of radar echo data. The method includes the following steps: acquiring original echo data of a plurality of scanning periods of a radar; successively conducting multi-pulse incoherent integration on the original echo data, obtaining echo data after pulse integration; conducting constant false alarm rate detection on the echo data which is subject to pulse integration, successively conducting binary quantization on the echo data which is subject to constant false alarm rate detection and conducting binary sliding window detection along the direction of a direction-fractal dimension; the echo data which is subject to binary sliding window serving as binary image data, firstly inflating the binary image data and then corroding the binary image data so as to obtain all connected domain of the binary image data; filtering a fist connected domain and a second connected domain, obtaining residual connected domain containing object plots; on the basis of the residual connected domain which contains the object plots, obtaining object information, realizing clotting of the object plots. The method can increase object parameter estimation precision and object resolution capability.

Description

technical field [0001] The invention belongs to the technical field of radar signal processing, and in particular relates to a method for agglomerating target points and traces of radar echo data, which is used for preprocessing radar echo data and extracting target parameters. Background technique [0002] With the development of radar technology, people require radar to have more functions and functions. Radar in the traditional sense is mainly used to measure basic information such as distance, azimuth, and elevation of targets. Modern radars require detection, trace acquisition, and target tracking in more complex environments (interference and clutter). [0003] Modern radar technology is developing in the direction of intelligence, miniaturization, informatization and precision. It is required that radar can acquire more accurate target information and achieve more stable target tracking. Track aggregation technology is the process of realizing target parameter estim...

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Application Information

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IPC IPC(8): G01S7/41
CPCG01S7/41
Inventor 陶海红王建声王雅王兰美曾操
Owner XIDIAN UNIV
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