FPGA & SOC based handheld ground penetrating radar (GPR) system

Abstract

The invention discloses an FPGA & SOC based handheld GPR system. The system uses an integrated chip in which FPGA and ARM processor are embedded as a master control unit, and the master control unit is cooperated with a peripheral circuit and a communication unit to realize functions including radar pulse emission, data reception and signal processing. A radar pulse emission unit and a programmable gain amplification circuit are used to emit and receive radar pulses and realize functions including filtering and amplification; an equivalent sampling sequential control unit based on FPGA design ensures the accuracy and resolution of echoes; and the ARM processor process the echoes in real time, man-machine interaction is carried out via a touch screen controller, and radar data can be uploaded to a host PC or cloud end for storage. The FPGA & SOC based handheld GPR system is small in size, low in weight, high in portability and capable of real-time online radar data processing, ensures high measuring precision and free and human-based operation, and can be widely applied in the military, industrial control and civil fields.

Description

technical field [0001] The invention relates to the field of ground penetrating radar, in particular to a hand-held ground penetrating radar system based on FPGA&SOC. Background technique [0002] Ground Penetrating Radar (GPR) is a non-destructive detection instrument that uses the penetration ability of electromagnetic waves to the surface to detect subsurface structures or buried objects. It transmits a specific form of electromagnetic waves to the subsurface, and measures the depth, medium structure and properties of the measurement target according to the parameters such as time delay, shape and spectrum characteristics of the echo signal. On this basis, the feature extraction of digital images is used. With the reconstruction technology, the underground target is imaged and processed in order to achieve the positioning and detection of the underground target. [0003] The traditional ground penetrating radar system is divided into two types, one is to use PC computer,...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problems of complex, bulky and inconvenient operation of the existing ground penetrating radar system, the present invention provides a hand-held ground penetrating radar system based on FPGA&SOC, which uses an integrated chip embedded with FPGA and ARM processor as the main control The unit cooperates with the peripheral circuit and communication unit to complete the functions of ground penetrating radar pulse transmission, data reception, signal processing, data transmission, etc. The whole radar host is small in size, light in weight, and has good portability, which can realize real-time online radar data processing function

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