Patent ID: 7132982
Filing Date: 2006-11-07
Classification: G01S,G08G

Abstract:
1. A method of tracking targets, comprising the steps of: receiving in a plurality of sensors, a data signal from a target, the data signal including identification information, generating, in the plurality of sensors, a time stamp TOA indicating when the data signal is received at each of the plurality of sensors, setting a cycle end time T fetching a new TOA value, comparing in a first comparing step, a TOA with T if the TOA value is greater than or equal to the T if the initial solutions of the 2D multilateration equations pass, performing a data-track association test to determine whether the data-track data is associated with an existing target track, should be a new track, or should be rejected, wherein if the data is associated with an existing track, the existing track position and velocities are filtered and updated with the latest record data, fetching a new TOA data, and returning to the setting a cycle end time step, wherein if the data-track data is not associated with an existing track, creating a new track and returning to the setting a cycle end time step, and wherein if outlier data is generated, the data is rejected and returning to the setting cycle time step.