wificsi1

This directory contains the Channel State Information (CSI) data acquired from WiFi CSI receiver 1 (NUC1) which was facing the CSI transmitter (NUC3) in a 180 degrees configuration. The files are in .mat format and each row in the file corresponds to a received CSI packet. Each packet consists of 270 complex CSI values (3 transmit antennas x 3 receive antennas x 30 OFDM subcarriers). This dataset also contains other information such as the activity being performed, timestamp in milliseconds, experiment number, person id, room id, and ground truth XY coordinates of the person in the room. More details on the CSI system and structure of the CSI data are available in the "Methods" and "Experiment Directory" sections of the Data Descriptor, respectively.本目录存储了从WiFi信道状态信息（Channel State Information, CSI）接收机1（NUC1）采集得到的CSI数据，该接收机与CSI发射机（NUC3）呈180度对向配置。所有数据文件均采用.mat格式存储，文件内每一行对应一条接收的CSI数据包。每条数据包包含270个复数值CSI数据，对应3个发射天线×3个接收天线×30个正交频分复用（Orthogonal Frequency Division Multiplexing, OFDM）子载波。本数据集还附带其他相关信息，包括受试者执行的动作、毫秒级时间戳、实验编号、受试者ID、房间ID，以及受试者在房间内的真实XY坐标。有关CSI系统及CSI数据结构的更多细节，可分别查阅本数据描述文档的“方法”与“实验目录”章节。