摘要
详细讨论了用于虚拟现实的直流式六自由度电磁跟踪系统的传统定位算法的一个改进 .本算法中 ,以正交的三轴发射源和两轴轴探测器作为传感器定位器件 ,替代了以往的三轴发射源和三轴轴探测器 .算法中以脉冲直流信号驱动发射源三轴分时发射 ,同时接收器两轴探测到相应的三组电磁信号和一个空驱动时间段内的环境磁场信号 ,通过该过程中获得的包括环境磁场信息在内的 9个数据确定了被测对象的方位 (位置和姿态 ) .
A improvement for the agorithm of 6 degree of freedom electromagnetic tracking system for virtual reality applications is described. The system employs a 3 o rthogonal axe magnetic transmitter and a 2 orthogonal axe magnetic sensor ins tead of a 3 orthogonal axe magnetic transmitter and a 3 orthogonal axe magne tic sensor, which is used in the traditional system 6 degree of freedom electr omagnetic tracking system. A direct current pulse sequence drives the 3 axes of the transmitter to emit one after another. The sensor detects three groups of tr ansmitted signals as well as the magnetic field of the environment, from which t he position and orientation of the sensor with respect to the transmitter can be determined.
出处
《传感技术学报》
CAS
CSCD
2000年第3期204-210,共7页
Chinese Journal of Sensors and Actuators
基金
国家教育部跨世纪人才培养基金
