Through-the-wall radar detection system and detection method based on unmanned aerial vehicle

Abstract

The invention discloses a through-the-wall radar detection system and detection method based on an unmanned aerial vehicle. The system comprises the unmanned aerial vehicle, an environment sensing unit, a through-the-wall radar, a holder and a control unit; The unmanned aerial vehicle, the environment sensing unit, the through-the-wall radar and the holder are all connected with the control unit; the through-the-wall radar is located on the unmanned aerial vehicle and is used for detecting an external structure, an internal structure and internal personnel of the to-be-detected building; the environment sensing unit is located on the unmanned aerial vehicle and used for sensing flight environment information of the unmanned aerial vehicle and sending the flight environment information to the control unit. The control unit controls the flight of the unmanned aerial vehicle according to the flight environment information, so that the distance between the unmanned aerial vehicle and the outer wall body is kept within a certain range; the holder is located on the unmanned aerial vehicle, the transceiving antenna of the through-the-wall radar is located on the holder, and the control unit controls the movement of the holder according to the flight environment information so as to enable the array plane of the transceiving antenna to be parallel to the outer wall body. The system has the advantages of simple structure, good detection performance and the like.

Description

technical field [0001] The present invention mainly relates to the technical field of radar detection, in particular to a detection system and detection method of through-wall radar based on an unmanned aerial vehicle. Background technique [0002] Through-the-wall radar is a technology developed rapidly in recent years to detect targets behind walls. It can detect, image, locate, track and identify targets behind walls. It has a wide range of applications in disaster and hostage rescue. [0003] Traditional through-the-wall radars are detected based on wall-mounted devices, and this kind of close-range detection is very dangerous in practical applications. Therefore, research on UAV-based long-range through-wall radar is needed. In UAV-based through-wall radar, the UAV is either hovering at a fixed point for detection, or it is programmed to move along a straight trajectory parallel to the wall for detection. However, in real situations, for example, when the drone is ho...

AI Technical Summary

Problems solved by technology

However, in real situations, for example, when the drone is hovering, the hovering accuracy cannot be guaranteed, causing the radar to shake back and forth, resulting in a decrease in detection performance or even failure to detect the target; the position of the drone is often non-linear when moving in parallel , which will also bring great trouble to the signal processing of the through-wall radar, resulting in a decrease in detection performance

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