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
Medical device arm
Xylitol-based anti-mucosal compositions and related methods and compositions
Formation of a masking layer on a dielectric region to facilitate formation of a capping layer on electrically conductive regions separated by the dielectric region
Pharmaceutical and diagnostic compositions for use in the treatment and diagnosis of neurodegenerative diseases or amyloid diseases
Hair care composition
System and method for ranking content and applications through human assistance
Optical input device
  Randomly Featured Patents
Method of making self-aligned silicided MOS transistor with ESD protection improvement
Apparatus for measuring a signal voltage including a current source with a control input on which said signal appears
Yoke structure that is adapted to be secured to a tube using magnetic pulse welding techniques
Compressor control at voltage and frequency extremes of power supply
Multifaceted tracker device for computer-assisted surgery
Lithium aluminate layered catalyst and a selective oxidation process using the catalyst
Wheel rim cover
Semiconductor device fabrication method
Vehicle tire with tread having circumferentially varying rigidity
Image sensor and method of fabricating the same