基于多位姿标靶的激光跟踪姿态测量系统参数标定
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Parameter calibration of laser tracking attitude measurement system based on multi-position targets
XIONG Zhi1*， ZHONG Chenxiaopeng¹， ZHANG Hao¹， JIA Xiaodong¹，GUO Zhengnan ZHAO Ziyue²，ZHAI Zhongsheng¹，ZHOU Weihu1，3
（1. Hubei Key Laboratory of Modern Manufacture Quality Engineering， School ofMechanical Engineering，Hubei Wniversity of Technology，Wuhan 43OO68， China; 2.Changcheng Institute ofMetrology &Measurement，Beijing1Ooo95，China; 3. Institute ofMicroelectronics， Chinese Academy ofSciences，Beijing 1Ooo29，China） * Corresponding author， E -mail：xiongzhi0611@163.com
Abstract： The six-degree-of-freedom measurement system based on laser tracking plays a critical role in the production，manufacturing，and assembly of large-scale equipment，where accurate pose measurement is essential for ensuring precise determination of position and orientation.To address the challenges of calibration in laser tracking pose measurement systems operating in long-distance and wide-field scenarios， this study presents a novel calibration method leveraging multi-position targets. The methodology focuses on lasertracking systems utilizing cameras，starting with a detailed introduction to the system's architecture and pose measurement principles. Subsequently，the pose-solving algorithm is analyzed to identify key factors influencing calibration accuracy. Based on this analysis，a parameter calibration method is developed using spatial multi-pose targets，employing spatial geometric constraints and the least squares principle for optimal parameter estimation. A laser tracking experimental platform，constructed with a total station and a movable calibration board designed to create a stereotactic target，is used to evaluate the pro posed method. Experimental results demonstrate that，within a measurement range of 3-15m ，the proposed calibration method enhances pose measurement accuracy by over 25.4% compared to conventional techniques. This method offers significant potential for applications requiring high-precision pose measurements in long-distance and wide-field environments.
Key Words： laser tracking; attitude measurement;long-range; large field of view; calibration
1引言
现代工业朝智能化方向快速发展，大型装备制造业中，测量是保证产品质量的关键环节。（剩余14352字）