Patent ID: 8060338
Filing Date: 2011-11-15
Classification: G01S

Abstract:
1. An apparatus for locating a non-GPS equipped stationary sensor node, said stationary sensor node having been haphazardly disbursed over a geographical area by a vehicle, the apparatus comprising: a processing unit that receives stationary sensor node data and known source trajectory information data for a known source, wherein the stationary sensor node data includes but is not limited to normalized amplitude of the time domain data and is related to the trajectory information data of a known source, wherein a data, point in the trajectory information data thr a known source comprises a time stamp, which corresponds to a given time, and coordinates of the known source at the given time, wherein the processing unit is adapted to correlate at least a portion of the stationary sensor node data with at least a portion of the known source trajectory information data and the absolute position of the known source to determine an absolute position of the stationary sensor node, said known source is a moving vehicle whose position at any given point is known and further comprises means for being detected by said stationary non-GPS equipped sensor node.