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
Automated dynamic differential data processing
Trading related to fund compositions
System and method for video encoding
Multifunction switch for vehicle having lighting module
Computerized apparatus for identifying industries for potential transfer of a job function
Visualization of information associated with applications in user interfaces
Generator with a segmented stator
  Randomly Featured Patents
Cradle
Soft-start reference ramp and filter circuit
Ink jet recording apparatus and waste ink tank thereof
Detergent compositions
Method for training a speech recognition system and an apparatus for practising the method, in particular, a portable telephone apparatus
Fab I inhibitors
Compound with indolocarbazole moieties and devices containing such compound
Carrier for fluid ejection device
Mobile phone with a hidden input device
Distributed power MOSFET