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 2 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
Vehicle fender
Attribute category enhanced search
Control of protein activity using a conducting polymer
Network-based dynamic encoding
PLL circuit
Systems and methods for restoring images
Wafer level packaging structure with large contact area and preparation method thereof
  Randomly Featured Patents
Flexible packaging composites
Frame
Traction roller transmission
Implementing hardware interrupt event driven mechanism to offer soft real-time universal serial bus
Methods for the implementation of nanocrystalline and amorphous metals and alloys as coatings
Multi-purpose light
Apparatus for using nanoparticles for printing images
In vitro control of protein synthesis in mammalian cells by IP3 receptor-binding protein
Method for making and using a supported metallocene catalyst system
Storage container for blood collection devices