中圖分類號：TN957 文獻標志碼：A DOI: 10.16157/j.issn.0258-7998.257173 中文引用格式： 劉嘉宇，謝躍雷，劉慶華. 基于射頻片上系統的步進頻探地雷達陣列系統設計[J]. 電子技術應用，2026，52(5)：92-102. 英文引用格式： Liu Jiayu，Xie Yuelei，Liu Qinghua. Design of a stepping frequency ground penetrating radar array system based on RFSoC[J]. Application of Electronic Technique，2026，52(5)：92-102.
Design of a stepping frequency ground penetrating radar array system based on RFSoC
Liu Jiayu1，Xie Yuelei1，2，Liu Qinghua1
1.School of Information and Communication Engineering， Guilin University of Electronic Technology；2.Nanning Guidian Electronic Technology Research Institute Co.， Ltd.
Abstract： Stepping frequency ground penetrating radar (GPR) has been widely developed and used in shallow-surface high-resolution detection due to its ultra-wideband advantage. However, the general stepping-frequency GPR hardware implementation often adopts a multi-board coordination scheme, and is mostly designed as a single transmitter and single receiver mode, which cannot simultaneously meet the modern detection requirements such as high detection efficiency and highly integrated system. In response to the above needs, this paper designs a multi-transceiver stepping-frequency ground penetrating radar array system based on RFSoC, and realizes a set of stepping-frequency GPR system that highlights the characteristics of high-resolution and high-detection efficiency, and has the function of transceiver control of antenna arrays. The hardware platform of this system is RFSoC-47DR digital-analogue mixed-signal processing board, the array antenna of this system consists of 23 ultra-wideband antennas of the same type designed as a 11-transmitter and 12-receiver structure, and through the design of the clock link, transceiver logic control link, RF switch control link, high-speed storage of data link and other modules, the system completes the system for all the antennas to transmit and receive. This system is able to image 22 B-sweeps in one test during the real test, which greatly improves the efficiency of detection. Through the test verification of several real-world scenarios such as stone pavement, asphalt tarmac, etc., this system design is able to carry out effective detection and acquire information such as targets and structures under the surface of common roads.
Key words : stepping-frequency ground penetrating radar；RFSoC；array antenna；three-dimensional imaging
