摘要
Abstract
To solve the issues of high cost,complex installation,and poor real-time performance associated with traditional slope monitoring methods,this study proposed a slope triangulation monitoring system based on dual millimeter-wave radars.By deploying passive high radar cross-section(RCS)reflector units at critical locations on the slope,two frequency-modulated continuous-wave(FMCW)millimeter-wave radars were used to perform high-precision distance measurements,enabling non-contact,real-time monitoring of slope deformation.The results show that:within a displacement range of 1-10 mm,the system achieves an average measurement deviation of only 0.039 6 mm and an average relative error of 3.43%.The Pearson correlation coefficient between the system's measurements and the ground truth from a laser rangefinder reaches 0.952 7,which delivers excellent measurement accuracy and consistency.The system features passive power supply,flexible installation,and all-weather operation,effectively overcoming the limitations of traditional monitoring methods,such as high costs,power supply difficulties,and poor real-time capability,offering a high-precision,low-maintenance technical solution for long-term slope safety monitoring of mountainous transportation infrastructure.关键词
山区边坡/监测预警/毫米波雷达/三角定位/高精度/稳定性Key words
mountainous slope/monitoring and early warning/millimeter-wave radar/triangulation positioning/high precision/stability分类
信息技术与安全科学
