Multiple Sensor Radar

Citation

Rigelsford, J. (2003), "Multiple Sensor Radar", Sensor Review, Vol. 23 No. 2. https://doi.org/10.1108/sr.2003.08723bad.012

Multiple Sensor Radar

Multiple Sensor Radar

Applicant: Litton Systems, Inc., USAPatent number: US6,225,942Publication date: 1 May 2001Title: Registration method for multiple sensor radar

Keywords: Sensors, Radar

This patent relates to multiple sensor radar systems with overlapping coverage from sensors at multiple locations. It provides a novel, computer executable method for registering multiple, dispersed, netted radars and takes advantage of track report data to decouple azimuthal and range errors. Track data from multiple radar systems corresponding to a common target are associated into track pairs and are used to calculate state vectors in a multi-dimensional vector space. These state vector components correspond to both position and velocity information and can be used to calculate an average normalized statistical distance. The azimuthal and range bias parameters are then varied to minimize the average normalized statistical distance. It provides fast, accurate correction estimates to be made for multiple radar registration, even in low-density target areas.