Desciption of the Demo you are about to see

On April 14, 2000 we video taped a demonstration of the RADAR technology for a Microsoft Research internal talk. As part of this demo we configured RADAR to track a user (Brian) as he walked from his lab. to the conference room, stopping once to pick up his meeting handouts. As the experiment ran we stored RADAR's estimation of Brian's location into a file. The animation you are about to see is the playback of this demonstration. The following setup was used in carrying out this demonstration.

Hardware:	Aironet Wireless Inc. 4800 series
RF Standard:	IEEE 802.11b
Data Rate:	11 Mbits/sec
OS:	Windows 2000 (build 2195)
Ourput Power:	30 mWatt
Floor Dimensions:	39 m x 10 m (approx)
Radio Map:	18 points (non-uniformly distributed)
Number of APs:	Between 4 and 5

We configured laptops to broadcast location packets once every second. These broadcast packets substituted Access Point beacon signals. We used only the basic RADAR system in this demonstration (i.e. we did not use our trajectory management history-based algorithm). The search space for matching signal tuples was relatively low as we did not measure signal tuples in any of the rooms along Brian's path except the conference room and his lab. We designed the network so that at every location along Brian's path, RADAR could gather signal strength information from at least four Access Points.

Show the demo