Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Multi-stage maximum likelihood target estimator










Image Number 3 for United States Patent #7266042.

A multi-stage maximum likelihood target estimator for use with radar and sonar systems is provided. The estimator is a software implemented algorithm having four computational stages. The first stage provides angle smoothing for data endpoints thereby reducing angle errors associated with tie-down times. The second stage performs a coarse grid search to obtain the initial approximate target state to be used as a starting point for stages 3 and 4. The third stage is an endpoint Gauss-Newton type maximum likelihood target estimate which determines target range along two time lines. The final refinement of the target state is obtained by the fourth stage which is a Cartesian coordinate maximum likelihood target estimate. The four-stage processing allows the use of target historic data while reducing processing time and computation power requirement.








 
 
  Recently Added Patents
Real-time virtual endoscopy
Vehicle having power supply apparatus
Image display device and method of changing first EDID with second EDID wherein the second EDID information is compatible with image display device
Housekeeping cart
Composite conductive pads/plugs for surface-applied nerve-muscle electrical stimulation
Gyroscope utilizing torsional springs and optical sensing
Business flow processing method and apparatus
  Randomly Featured Patents
Global title translation in a telecommunications signalling network supporting local number portability
Methods of dewatering algae for extraction of algal products
Method of assembly of molecular-sized nets and scaffolding
Process for liming pelts of animal hides and skins
Fishing pole holder
Bowling lane conditioning machine with single head dispenser
Device for the snap-fixing of fittings to the upper of a ski-boot
Travelling hearth housing
Sports ball
Ceria powder