3D radar life detecting and positioning device with high resolution and high penetrability

Abstract

The invention discloses a 3D radar life detecting and positioning device with high resolution and high penetrability. The device comprises an emission subsystem, a reception subsystem, a multichanneldata collection system, a master control unit, a wireless display control terminal and a power supply module; the nanosecond level high-amplitude pulse emission subsystem is composed of a marx pulse generation circuit, three avalanche triodes and a resonant trigger circuit; echoes are received by the reception subsystem, processed by a noise reduction unit, a filtering unit and a signal amplification unit, and sent to the multichannel data collection system for sampling, a sampling result is input and output to the master control unit in which a Linux system is operated by a DSP data processing module and a WiFi communication in parallel, and bidirectional data communication of the wireless display control terminal is realized by 2.4GWiFi. Thus, the device can realize 3D life detection andpositioning, pulses are prevented from distortion, 3D simulated images are clearer, and received weak signals are stronger.

Description

technical field [0001] The invention belongs to the field of life detection radar, in particular to a high-resolution and strong penetrating three-dimensional radar life detection and positioning device. Background technique [0002] The radar life detectors currently on the market are all one-dimensional single-shot and single-receive radars, which can only achieve effective detection in the distance dimension, and cannot accurately locate the specific location of the trapped person; and due to the complexity of the accident scene environment, this kind of One-dimensional radar life detectors have poor penetration and large false alarms, thus delaying precious rescue time. [0003] In the prior art, when the radar scanning process is performed on the detected position, the distortion and tailing effect of the pulse wave during the radiation and echo of the transmitted pulse wave cannot be guaranteed, resulting in the instability of the received parameters, which seriously a...

AI Technical Summary

Problems solved by technology

[0002] The radar life detectors currently on the market are all one-dimensional single-shot and single-receive radars, which can only achieve effective detection in the distance dimension, and cannot accurately locate the specific location of the trapped person; and due to the complexity of the accident scene environment, this kind of One-dimensional radar life detectors have poor penetration and large false alarms, which delay precious rescue time

[0003] In the prior art, when the radar scanning process is performed on the detected position, the distortion and tailing effect of the pulse wave during the radiation and echo of the transmitted pulse wave cannot be guaranteed, resulting in the instability of the received parameters, which seriously affects The working process of the detection, and in the complex environment, there are many interference sounds around. If the noise reduction cannot be performed, the interference to the received signal will be increased. Covering and blocking the target, especially when the vital body target and vital signs are low, it is difficult to capture the signal of low breathing and heartbeat frequency, which affects the undetectability of the target. Since most of them have no early warning function, they cannot be accurately zoomed out when scanning The scope of the target location will also increase the workload of the search, increase the processing data into a clear image, and ensure the accuracy of the internal structure of the target location

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