Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method of mixed data assisted and non data assisted navigation signal acquisition, tracking and reacquisition










Image Number 4 for United States Patent #7859456.

The present invention provides systems and methods for enabling a navigation signal receiver to perform both data assisted and non-data assisted integration to provide better integration during signal acquisition, reacquisition and tracking. In data assisted integration mode, a receiver uses known or predicted data bits to remove the modulated data bits of a received signal prior to integration. In non data assisted integration mode, when the data bits are not known or predictable, the receiver uses an optimal estimation or maximum likelihood algorithm to determine the polarities of the modulated data bits of the received signal. This may be done by determining which of various possible bit pattern yields the maximum integrated power. When the modulated data bits are not known or predictable over a limited range, the receiver carries out data assisted integration over the known or predictable data bits and additional non data assisted integration.








 
 
  Recently Added Patents
Base station apparatus and method for use in mobile communication system
Discovery, analysis, and visualization of dependencies
Synthesis of 8-amino boron dipyrromethenes having blue fluorescence
Clothing fastener accessory
Automated gate system
Programming of DIMM termination resistance values
Sock
  Randomly Featured Patents
High heel inset
Wire rope damage index monitoring device
Automated method and system for setting image analysis parameters to control image analysis operations
Shoe upper
Catalysts for the polymerization of olefins, process for the production of olefin polymers, and processes for the production of styrene polymers
Method of making a wood structural member with finished edges
Method for detecting faults in a combplate and sensor combplate
Exercise bar
Ventilation housing to be mounted on a ceiling or wall
Memory element and memory device