Indoor Location Positioning of Non-Active Objects Using Ultra-Wideband Radios

In this paper, we propose an indoor location positioning method for non-active objects (that is, objects that do not transmit radio waves) using ultra-wideband radios and a fingerprinting-like algorithm. This proposed method is based on pattern matching of the changes to the multipath intensity profile caused by the object to be located. Experimental results are reported, and the performance of the proposed method is evaluated. It is shown that the location of a non-active object can be determined with a very good degree of reliability by using commercial off-the-shelf ultra-wideband radios. The applications for this proposed method are numerous, especially in areas such as public safety and asset tracking