Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
High precision surveillance system by means of multilateration of secondary surveillance radar (SSR) signals










Image Number 4 for United States Patent #7570194.

A system able to locate and identify aircraft and vehicles based on the reception and processing, with novel means and methods, of signals emitted by the transponder of the secondary surveillance radar, shortly SSR. The system has a number of fixed stations distributed in the area of interest, e.g. in the airport area; any signal (the well known SSR reply/squitter) transmitted by the on-board transponder is received by four or more stations and the measurement of three or more differences of times of arrival (TOA) permits the reconstruction of the position of the transponder in spite of the fact that the transmission time is unknown. Suitable algorithms based on optimal estimation enhance both the accuracy of TOA measurements and the accuracy of the reconstructed position. The effects of possible overlapping of signal in time are avoided or mitigated by multiple source separation techniques based on least squares algebraic processing.








 
 
  Recently Added Patents
System and method for efficient resource management of a signal flow programmed digital signal processor code
Multiple secure elements in mobile electronic device with near field communication capability
Mass spectrometry device and method using ion-molecule reaction ionization
Image scanning apparatus and image forming apparatus
Systems and methods for assigning a template to an existing network configuration
LED-array package
Power supply input voltage detection circuit
  Randomly Featured Patents
Abrasive shim compliant doctor blade
Synthetic eye simulating eyeball movement
Night vision goggle assembly with independant monocular devices
Device for separating components of a fluid sample
Bead structure for pneumatic tires
Particulate solids cracking apparatus and process
Mobile asphalt mix plant with component sensing and distinct steering means
Method of controlling motor vehicle
Image display method and image display system
Alkali metal battery