Mayflower Communications Company, Inc. Patent applications |
Patent application number | Title | Published |
20150226856 | DISTORTIONLESS MEAN PHASE ANTIJAM NULLING OF GPS SIGNALS - System and method for mean phase compensation of code and carrier phase distortions induced by Space Time Adaptive Processing (STAP) filters used for removing interferences from received GPS signals. The phase distortion is mitigated (without the use of beamforming) using a single STAP filter for processing the GPS satellite channels in which appropriate bundling of constraints is applied to the filter weights. The complete solution can be contained in the antenna electronics with no required changes to the legacy GPS receiver. | 08-13-2015 |
20130169477 | Single antenna GPS measurement of roll rate and roll angle of spinning platform - System and method for determining the roll rate and roll angle of a spinning platform. The IQ amplitude and/or phase characteristics of GPS signals received at a single receiver antenna are measured using the signals output directly by a correlator that is driven at the satellite tracking frequency used for forming the navigation solution. The roll rate and roll angle are determined in real time by a Roll filter, which is preferably an Extended Kalman Filter (EKF) employing probabilistic data association, whose inputs include the measured IQ characteristics and the navigation solution. Data from non-GPS measurement sources is optionally provided to update the navigation and/or roll solution. | 07-04-2013 |
20120326926 | HIGH SENSITIVITY GPS/GNSS RECEIVER - The GPS/GNSS receiver and method disclosed herein improves the GPS/GNSS receiver tracking sensitivity for detecting low signal-to-noise (SNR) GPS/GNSS signals through improved vector tracking, multibit correlation, improved extended range code-phase discrimination, and discrimination and navigation filter measurement via Probabilistic Data Association, individually or in combination. The solution is achieved without any external data aiding, such as from an inertial measurement unit, other wireless infrastructure source, or communication of GPS/GNSS satellite vehicle (SV) subframe data to the GPS/GNSS receiver over a data link. | 12-27-2012 |