Resources Contact Us Home
Methods for two-dimensional autofocus in high resolution radar systems

Image Number 13 for United States Patent #7843377.

Provided are two-dimensional autofocus methods in a synthetic aperture radar (SAR) system which include: (1) two-dimensional pulse pair product algorithm including shear PGA, eigenvector phase history ("EPH"), shear PGA/EPH); (2) two-dimensional optimization algorithms including parametric one-dimensional estimate/two-dimensional correction, parametric two dimensional estimate/two-dimensional correction, unconstrained two-dimensional nonparametric and constrained two-dimensional nonparametric methods; (3) a two-dimensional geometry filter algorithm; (4) a two-dimensional prominent point processing algorithm; (5) a one-dimensional phase estimate of higher order two dimensional phase errors; and, (6) a fast SHARP parametric autofocus algorithm.

  Recently Added Patents
Preserving user applied markings made to a hardcopy original document
Systems and methods for port mirroring with network-scoped connection-oriented sink
Illumination unit for a direct-view display
Location estimation of wireless terminals through pattern matching of deduced signal strengths
Clothing fastener accessory
System and method for ensuring compliance with organizational policies
Porous objects having immobilized encapsulated biomolecules
  Randomly Featured Patents
System and method for performing verification based upon both rules and models
Cohesive fibrous mat for in-transit particulate control
Base station with coordinated multiple air-interface operations
Sewing machine
Method of manufacturing a flexible and waterproof electric circuit
Portable holding tank
Circularly polarized wave antenna and manufacturing method therefor
Jet printing ink composition for glass
Glass-reinforced polyester moulding compounds
Object sorting system