基于PSD传感器的炸点三维坐标测量方法研究

Research on 3D Coordinate Measurement Method of Explosion Points based on PSD Sensors

针对野外炸点空间三维坐标测量的问题,提出了基于二维PSD位置传感器的炸点位置测量方法,构建了基于二维PSD位置传感器的炸点三维坐标测量系统;基于双目视觉原理建立了炸点空间三维坐标测量数学模型;研究了被动探测系统在野外远距离下的标定技术;通过系统误差分解传递,分析了各参数的误差;在Matlab中分别绘制了炸点位置坐标3个维度的误差分布图,并分析了测量系统误差随炸点实际位置变化的分布情况;根据误差分布图得到了在理论100 m测试距离下X坐标最大测量误差约为0.292~0.303 m,Y坐标最大测量误差约为0.251~0.371 m,Z坐标最大测量误差0.270~0.336 m;最后通过静爆实验对测量方法正确性、被动探测系统标定技术可行性和测量系统功能性进行了验证,结果表明测量系统响应速度快且功能正常,被动探测系统标定技术具备可行性且操作方便,可适用于野外炸点位置的快速测量。

Aimed at the spatial 3D coordinate measurement of explosion points,anA explosion point measurement method for measuring the spatial three-dimensional coordinates of explosion points in the field is proposed,based on 2D a two-dimensional position sensitive detector(PSD)position sensor is proposed.An explosion-point 3D A measurement system based on 2D PSD position sensor is constructed for determining the coordinates of explosion points in three dimensions using a two-dimensional PSD position sensor is constructed..Furthermore,a mathematical model for measuring the spatial 3D three-dimensional coordinates of explosion points is established based on binocular vision principles.Calibration techniques for long-range passive detection systems in the field are studied.By decomposing and transferring The system error is decomposed and transferred to analyzesystem error the errors of various parameters are analyzed,plot the.3D error Error distribution graphs of the three dimensions of the explosion point s position coordinates are plotted in Matlab,and analyze the distribution of measurement system errors with changes in the actual location of the explosion point positions is analyzed.Based on the error distribution graphs,the maximum measurement error for the X-coordinate is approximately from 0.292 m to 0.303 m,for the Y-coordinate it is approximately from 0.251 m to 0.371 m,and for the Z-coordinate it is approximately from 0.270 m to 0.336 m,with at a theoretical testing distance of 100 m.Finally,the static explosion experiments verify the correctness of the measurement method,the calibration technique the feasibility of the calibration technique for the passive detection system,and the functionality of the measurement system are validated through static explosion experiments.The experimental results demonstrateshow that the measurement system has a fast response speed and good function,ality,the calibration technique for the passive detection system is operationally feasible,and the method is suitable for the rapid measurement of explosion point positionss in the field.