GPS-IMU-SF-comparison
收藏资源简介:
data set for 12 horses (column 1), 3 runs each (column 2: 1 inside lane, 2 middle lane, 3 outside lane)), at target speed of 16.1m/s (36 miles per hour). Data set containing 61 samples per run including: -stride frequency extracted from GPS speed fluctuations collected with a 10 Hz GPS logger (SF GPS), Vbox sport, 2022 version -stride frequency extracted from a IMU data logger (Xsens DOT 2nd generation) logging at 120 Hz and configured for 'dynamic' settings, (SF IMU). SF IMU data downsampled to match SF GPS data. -synchronization fo GPS and IMU data via root mean square error calculation of GPS and IMU heading (yaw) values. -average value of SF GPS and SF IMU -difference between SF GPS and SF IMU -average and difference for Bland and Altman analysis of method agreement. <br> in addition to the GPS and IMU SF data, a MATLAB script is provided (findSFfromGPSspeed.m) that can be used to extract SF values from GPS speed values (sampled at 10 Hz). AN example file containing GPS speed (Horse12-Speed.csv) is also given for that purpose.
本数据集针对12匹马(第1列),每匹马开展3次跑测(第2列:1代表内道、2代表中道、3代表外道),测试目标速度设定为16.1m/s(即36英里每小时)。单次跑测包含61个样本,具体涵盖以下数据: 1. 由10Hz GPS记录仪(SF GPS,Vbox Sport 2022版)采集的GPS速度波动中提取的步频; 2. 由设置为“动态”模式、采样率120Hz的惯性测量单元(Inertial Measurement Unit, IMU)数据记录仪(Xsens DOT 第二代)采集的数据提取的步频(SF IMU),且已将SF IMU数据降采样至与SF GPS数据匹配的采样率; 3. 通过计算GPS与IMU航向(yaw)值的均方根误差,实现GPS与IMU数据的同步; 4. SF GPS与SF IMU的平均值; 5. SF GPS与SF IMU的差值; 6. 用于两种方法一致性分析的布兰德-奥特曼(Bland and Altman)分析所需的平均值与差值。 此外,除GPS与IMU步频数据外,本数据集还提供了一份MATLAB脚本(findSFfromGPSspeed.m),可用于从10Hz采样的GPS速度数据中提取步频值。同时附带了一份用于示例的GPS速度数据文件(Horse12-Speed.csv)。




