These measurements were made by Joon-Yong Lee in support of his research on UWB ranging issues and were published in IEEE JSAC paper and in his Phd Thesis. The measurements were taken in the basement of the Electrical Engineering Building at USC (floor plan shown below).
Fig. 1 Floor Plan Of the EEB basement
The transmitter was positioned in the Ultra Lab (the room in the lower left corner of the floor plan). The wall to the left of the door to this lab, and all of the exterior walls are reinforced cinder block, and interior walls are steel stud and dry wall construction. the floors along the direct transmission paths are metal-backed raised floor tiles. The ceilings contain considerable duct work and piping. The rooms in this area contain large quantities of metallic equipment. The square items shown in the floor plan, including the one in the middle of the UltRa Lab, are reinforced concrete support pillars.
The link distances were measured with the aid of the floor tiling pattern, and in the longest measurements could be off by at most an inch or so. A table of these measurements, keyed to the numbered receiver locations on the floor plan, is shown below:
Each of the measurements is contained in two files that represent measurements in two consecutive time windows. each 200 ns long. The measurement process was triggered by cable, supplying a constant time reference for the process. The logged measurements are the average of 512 traces to reduce measurement noise. More information is available in the file headers.
containing all the above files.