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Low-cost linear frequency modulation ground penetrating radar system and use method

A technology of linear frequency modulation and ground penetrating radar, which is applied in the radio wave measurement system, using re-radiation, radio wave reflection/re-radiation, etc., to achieve the effect of reducing requirements, reducing equipment costs, and wide bandwidth

Pending Publication Date: 2022-05-06
DALIAN ZHONGRUI SCI & TECH DEV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a low-cost chirp ground-penetrating radar system and method of use to solve the problems mentioned in the background technology

Method used

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  • Low-cost linear frequency modulation ground penetrating radar system and use method
  • Low-cost linear frequency modulation ground penetrating radar system and use method
  • Low-cost linear frequency modulation ground penetrating radar system and use method

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with accompanying drawing:

[0032] Such as figure 1 As shown, a low-cost LFM GPR system includes a radio frequency part, a digital signal processing part and a host computer part, the radio frequency part communicates with the digital signal processing part, and the digital signal processing part communicates with the host computer part;

[0033] The radio frequency part is used to receive the linear frequency modulation control signal of the digital signal processing part, and is also used to transmit the linear frequency modulation electromagnetic wave, and is also used to receive the echo signal and transmit it back to the digital signal processing part, and the digital signal processing part is used to control the frequency of the transmitted signal And generate linear frequency modulation control signal, also used to receive the echo signal and perform digital signal processing, after the process...

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Abstract

The invention provides a low-cost linear frequency modulation ground penetrating radar system and a use method, the low-cost linear frequency modulation ground penetrating radar system comprises a radio frequency part, a digital signal processing part and an upper computer part, the radio frequency part is in data intercommunication with the digital signal processing part, and the digital signal processing part is in data intercommunication with the upper computer part; the radio frequency part is used for receiving a linear frequency modulation control signal of the digital signal processing part, transmitting a linear frequency modulation electromagnetic wave, receiving an echo signal and transmitting the echo signal back to the digital signal processing part, and the digital signal processing part is used for controlling the frequency of the transmitted signal and generating the linear frequency modulation control signal; the digital signal processing part is used for receiving echo signals, performing digital signal processing and transmitting the echo signals back to the upper computer part after processing is finished, and the upper computer part is used for controlling working parameters of the digital signal processing part and processing and displaying the returned echo signals. And the range resolution can be improved while the detection depth is not reduced.

Description

technical field [0001] The invention relates to the technical field of engineering surveying equipment, in particular to a low-cost linear frequency modulation ground penetrating radar system and a using method. Background technique [0002] In recent years, with the gradual deepening of urbanization in our country, the history of urbanization has gradually lengthened, and a new geological disaster: urban road subsidence disasters have also occurred year by year. Urban road subsidence disasters are mainly caused by cracks and holes in the underground foundation of urban roads, which are attacked by earthquakes, floods, pipeline leakage, etc. Road subsidence occurs when the underground foundation cannot support the load of the road above. It can be seen that before the disaster occurs, timely and accurate detection of disaster characteristics such as cracks and holes can effectively prevent urban road subsidence disasters. Ground penetrating radar is currently the most effec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/88G01S7/292G01S7/41G01S13/89
CPCG01S13/885G01S7/292G01S7/41G01S13/89
Inventor 陈洁李庆超白旭周昶宇
Owner DALIAN ZHONGRUI SCI & TECH DEV
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