Patents Assigned to DATAGRID, INC.
  • L1/L2 GPS receiver with programmable logic
    Patent number: 8665151
    Abstract: A Global Positioning System (GPS) commercial receiver includes programmable logic that utilizes P-code modulated L1 and L2 GPS signals to derive estimates of in-phase and quadrature-phase components of both L1 and L2 signals, a programmable processor that calculates pseudoranges and pseudo-Doppler phases, and derives navigation solutions. A resulting complex accumulated L2 signal comprises near-ML estimates of desired L2 amplitude and pseudo-Doppler phase.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: March 4, 2014
    Assignee: Datagrid, Inc.
    Inventor: Alexander E. Fridman
  • L1/L2 GPS RECEIVER WITH PROGRAMMABLE LOGIC
    Publication number: 20130002486
    Abstract: A Global Positioning System (GPS) commercial receiver includes programmable logic that utilizes P-code modulated L1 and L2 GPS signals to derive estimates of in-phase and quadrature-phase components of both L1 and L2 signals, a programmable processor that calculates pseudoranges and pseudo-Doppler phases, and derives navigation solutions. A resulting complex accumulated L2 signal comprises near-ML estimates of desired L2 amplitude and pseudo- Doppler phase.
    Type: Application
    Filed: October 19, 2007
    Publication date: January 3, 2013
    Applicant: DATAGRID, INC.
    Inventor: Alexander E. Fridman