论文部分内容阅读
文章磁目标跟踪系统选用霍尼韦尔HMC1043磁传感器阵列来采集永磁体的磁场信息,并实现定位。由于磁场传感器阵列的各传感器位置、方向和灵敏度直接影响系统定位的精确度,所以要求对这些磁传感器参数进行准确的标定。文章针对磁传感器阵列的标定问题提出了目标误差函数和优化计算方法。通过对所有参数的迭代计算和优化更新使目标误差函数达到最小,完成对磁传感器的位置、方向和灵敏度等参数的标定。文章方法已对实际传感器系统实施应用。在MATLAB环境下,PC机采集目标磁体的磁场信号,通过算法计算确定所有磁传感器的位置、方向和灵敏度,完成标定。通过文章方法的标定,系统定位精度有明显的提高,本方法的可行性和合理性也因此得到验证。
The magnetic target tracking system uses Honeywell HMC1043 magnetic sensor array to collect the magnetic field information of the permanent magnet and realize the positioning. Since the position, orientation and sensitivity of each sensor of the magnetic field sensor array directly affect the accuracy of the system positioning, it is required that these magnetic sensor parameters be accurately calibrated. In this paper, the target error function and optimization calculation method are proposed for the calibration of magnetic sensor array. Through the iterative calculation and optimization updating of all the parameters, the target error function is minimized, and the calibration of the position, orientation and sensitivity of the magnetic sensor is completed. The article method has been applied to the actual sensor system. In the MATLAB environment, the PC collects the magnetic signal of the target magnet and determines the position, orientation and sensitivity of all the magnetic sensors through algorithm calculation to complete the calibration. Through the article method calibration, the system positioning accuracy has been significantly improved, the feasibility and rationality of this method has been verified.