Bluetooth Low Energy Separate Channel Fingerprinting dataset with Frequency-Scanned Antennas and Monopole

This dataset contains Bluetooth Low Energy Separate Channel (SC BLE) Fingerprinting (FP) data recorded in an indoor facility. The dataset includes Received Signal Strength Information (RSSI) data collected from two independent location systems: one created with four BLE beacons connected to four traditional monopole antennas, and the other four beacons connected to two dual-port Frequency-Scanned Leaky Wave Antennas (FS LWA). Both systems are installed covering the same 7m x 5m area located in a basement zone. The dataset includes a reference radiomap file for each point equidistant 50cm to generate Fingerprinting techniques. The calibrated radiomap files are included in the Calibration_21112023 folder. In the name of each file, the {x, y} position where the data were recorded is included, with a total of 130 reference points. The data labelled as P1 and P2 are the RSSI recorded from beacons connected to FS LWA1, while P3 and P4 data corresponds to RSSI obtained from beacons of FS LWA2. Finally, P5, P6, P7 and P8 data sets belong to beacons connected to individual monopole antennas. Each calibration file contains 100 samples of RSSI received from the corresponding beacons at each one of the 130 reference points forming the calibration grid. The dataset also includes test samples for different days. These days are labelled as day 1, 8, 15, 22, 29, 51, 86 and 94 after the calibration day 0. This way, the variation of the different SC FP BLE antenna systems’ performance over time, can be studied. This classification of the data as a function of time, is categorized in the folders with the names Test_day_XX_date. As done with the reference calibration information for day 0, a file with the RSSI collected in each reference point (within a total of 130 grid points) can be found in each folder. The name of the file indicates the reference point where the data were collected. Different to the reference calibration data of day 0 (where 100 RSSI samples were considered for each one of the 130 calibrated {x, y} positions), the test data obtained in different subsequent days is composed by ten samples of RSSI for each one of the 130 test point. Moreover, to test the performance of the systems when some modifications occur where the calibration was performed, some data tests are collected adding several offices' furniture on the days 15, 22, 29, 51 and 94 after the calibration procedure performed at day 0. These data are stored in folders with the name Test_day_XX_with_furnitures_date. Similar to the previous test data, the name of the file includes 130 reference {x,y} points, with 10 RSSI samples each, and for the corresponding eight beacons (P1..P8), which are labelled for both monopole (P5, P6, P7 and P8) and FS LWA antenna systems (P1 and P2 for FS LWA1 and P3 and P4 for FS LWA2).本数据集记录于某室内设施中，包含分离信道低功耗蓝牙（Bluetooth Low Energy Separate Channel, SC BLE）指纹（Fingerprinting, FP）数据。数据集涵盖两套独立定位系统采集的接收信号强度指示（Received Signal Strength Information, RSSI）数据：一套系统采用4台连接传统单极天线的BLE信标搭建，另一套则使用4台连接两台双端口扫频漏波天线（Frequency-Scanned Leaky Wave Antennas, FS LWA）的信标搭建。两套系统的覆盖范围均为地下室区域内一块7m×5m的相同区域。 数据集包含用于指纹定位技术的等距参考无线映射文件，参考点间距为50cm。经校准的无线映射文件存储于Calibration_21112023文件夹中。每个文件名均包含数据采集时的{x,y}位置坐标，总计130个参考点。其中，标记为P1、P2的数据为连接FS LWA1的信标采集的RSSI，P3、P4数据对应FS LWA2配套信标的RSSI；P5、P6、P7、P8数据集则属于连接独立单极天线的信标。每份校准文件包含130个参考点中每个位置对应信标的100条RSSI采样数据。 数据集还包含不同日期的测试采样数据，测试日期以校准日（记为第0日）为基准，分别为第1、8、15、22、29、51、86和94日，用于研究不同SC FP BLE天线系统的性能随时间的变化情况。按时间分类的测试数据存储于名为Test_day_XX_date的文件夹中。与第0日的参考校准信息类似，每个文件夹内均包含130个网格参考点的采集RSSI文件，文件名标注了对应数据的采集参考点位置。 与第0日的参考校准数据（130个校准{x,y}位置各对应100条RSSI采样）不同，后续不同日期采集的测试数据，在130个测试点中每个位置均仅包含10条RSSI采样数据。 此外，为测试系统在采集校准环境发生变更时的性能，在校准日（第0日）后的第15、22、29、51和94日，采集了添加多组办公家具后的测试数据，此类数据存储于名为Test_day_XX_with_furnitures_date的文件夹中。与此前的测试数据一致，每个文件夹内的文件均标注了130个参考{x,y}点，每个文件包含对应8台信标（P1至P8）的10条RSSI采样数据，其中P5、P6、P7、P8对应单极天线系统，P1、P2对应FS LWA1，P3、P4对应FS LWA2。