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Target ranging method and device

A technology for target ranging and equipment, applied in the field of electronics, can solve the problems of distance information detection accuracy, signal offset, wavelet transform hardware implementation that affect the detection target, etc., to improve detection accuracy, ensure stability, and simplify The effect of the identification process

Inactive Publication Date: 2018-09-04
SHENZHEN INSTITUTE OF INFORMATION TECHNOLOGY
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Problems solved by technology

[0003] In the existing technology, the pulse signal is often identified by the echo signal through frequency mixing and wavelet transform, and then the distance information of the detection target is obtained through the maximum peak position in the pulse signal. Complicated, and the down-conversion process implemented by frequency mixing is easy to cause the disadvantage of signal offset, which in turn affects the detection accuracy of the distance information of the detection target

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Embodiment Construction

[0021] 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.

[0022] The target ranging method provided by the embodiment of the present invention can be applied to the scene of distance detection of target objects such as wall steel bars and underground pipes, for example: the target ranging equipment obtains the echo signal obtained by the radar beam reflected by the target object , performing down-conversion processing on the echo signal in an integral manner to generate a pulse signal corresponding to the echo signal,...

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Abstract

The embodiment of the invention discloses a target ranging method and device. The method includes the following steps that: echo signals obtained when a radar beam is reflected by a target object areobtained, down-conversion processing is performed on the echo signals by using an integration mode, so that pulse signals corresponding to the echo signals are generated; the peak position of a pulsepeak in the pulse signals is acquired, the peak numerical value of the peak position is obtained, and the width numerical value of the pulse peak is acquired based on the peak position; and when boththe peak numerical value and the width numerical value satisfy a pulse threshold, the distance information of the target object is acquired according to time difference between the radar beam and theecho signals and a signal transmission speed. With the target ranging method and device of the invention adopted, the identification process of the pulse signals can be simplified, the stability of the pulse peak in the pulse signals can be ensured, and the detection accuracy of the detection of the distance information of the target can be improved.

Description

technical field [0001] The present invention relates to the field of electronic technology, in particular to a target ranging method and equipment thereof. Background technique [0002] Radar detectors can be used in scenarios such as wall penetration and ground penetration. The use of radar detectors can realize non-contact detection of relevant information of targets (such as: wall reinforcement, underground pipes). Taking distance information as an example, by detecting the target The distance information can be used for detection, and the distance information can be used to realize the imaging of the detection target. [0003] In the existing technology, the pulse signal is often identified by the echo signal through frequency mixing and wavelet transform, and then the distance information of the detection target is obtained through the maximum peak position in the pulse signal. It is complicated, and the down-conversion processing realized by frequency mixing is easy t...

Claims

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Application Information

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IPC IPC(8): G01S13/08G01S7/292
CPCG01S7/292G01S13/08
Inventor 陈勖
Owner SHENZHEN INSTITUTE OF INFORMATION TECHNOLOGY
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