【作者】 张延波； 杨秀蔚； 王忠民； 徐文青； 张琳；

【Author】 ZHANG Yanbo;YANG Xiuwei;WANG Zhongmin;XU Wenqing;ZHANG Lin;Institution of Automation of Shandong Academy of Sciences;

【机构】 山东省科学院自动化研究所；

【摘要】 针对基于线性调频扩频技术的室内人员定位系统中,应用TDOA测距算法显示定位结果会出现定位目标不停漂移,运动轨迹不平滑的问题,提出一种运用卡尔曼滤波模型对信号数据进行迭代递归,实现位置坐标的修正。实验测试结果表明,运用卡尔曼滤波处理原始数据之后,位置坐标的浮动范围缩小到30 cm,运动轨迹变得平滑,有效抑制了跟踪目标大范围波动,在一定程度上提高了定位精度与跟踪效果。更多还原

【Abstract】 According to the problem about the target and the movement track are not smooth in the indoor personnel location system based on chirp spread spectrum technology used to display the location results by TDOA location algorithm.An iterative recursion of the signal data using the Kalman filter model is proposed to realize the correction of the location coordinates.Experimental test results show that the range of the location coordinate is reduced to 30 cm,and the motion track becomes smooth using Kalman filter to process the original data,the tracking target is effectively suppressed,the positioning accuracy and tracking performance are improved to a certain extent.更多还原