Channel Measurements from Sitarjevec Mine for Propagation Modelling in a Cave Environment

The dataset contains data collected during a measurement campaign using the DecaWave1000 UWB pulse radio module in the Sitarjevec mine in Litija, Slovenia. 

The measurements include complex channel impulse responses (CIRs) collected for 40 predefined positions with the following system parameters:

CONF1: Channel 4, DataRate 110, PRFR 16, PreambleLenght 4096, PreambleCode 7;

CONF2: Channel 4, DataRate 110, PRFR 64, PreambleLenght 4096, PreambleCode 17;

CONF3: Channel 7, DataRate 110, PRFR 16, PreambleLenght 4096, PreambleCode 7;

CONF4: Channel 7, DataRate 110, PRFR 64, PreambleLenght 4096, PreambleCode 17.

Measurement setup

Measurements were performed using the DecaWave1000 UWB pulse radio module in Segment 1 of the mine. Four points (Point A, Point B, Point C, and Point D) were selected for defining the positions of the nodes as shown in Figure 1. Point A denotes the main entrance, the entrance to the measurement segment is represented by Point B, and the beginning and the end of the measurement environment are denoted by Point C, and Point D, respectively. The length of the mine between Point A and Point D is approximately 60 m. 

The nodes were mounted on stands 1.4 m above the ground, which is not flat. They were placed on a straight line connecting Point C and Point D. The ANCHOR node was positioned in Point C, and the TAG node was moved along the reference line with a step of 1 m up to a maximum distance of 40 m. The nodes were always positioned so the antenna was centred above the reference line. 

Folder structure

The measurements collected for each of the TAG node positions are stored in the corresponding folder. The folders are named m_n, with n=1, ..., 40 corresponding to the TAG's distance to the ANCHOR. Each folder contains four CSV files holding the CIR data measured using the four pre-defined configurations of the UWB system. Each CSV file stores CIRs of approximately 200 repeated measurements as separate records. The CIRs hold complex values of the 156 strongest multipath components corresponding to the taps in the DecaWave1000 accumulator, each of which represents a 1 ns sample interval. 

Authors

Teodora Kocevska, Aleš Simončič, Grega Morano, Tomaž Javornik, and Andrej Hrovat

Department of Communication Systems

Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia

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