A new multi-sensor registration

A new multi-sensor registration is discussed in this paper. Registration is the process whereby various bias errors are removed from multi-sensor position reports so that they can be accurately combined and utilized for multi-sensor tracking and display. Current ATC systems use a NAS (National Airspace System) registration algorithm to calculate the bias errors. To overcome the shortcomings of the NAS registration, a multi-sensor registration algorithm based on a least squares minimization is proposed. This algorithm can be used to efficiently calculate the bias errors for all the radars simultaneously in the system. The implementation of this algorithm needs a certain number of target report pairs for registration calculation, but there is no requirement for large number of samples; as such there is no need to wait for a long time before the biases are obtained. Unfortunately, this direct least-square method is not feasible for large scale registration problems.