US 2026/0227526 A1 · METHOD FOR REJECTING ANOMALOUS PHASE MEASUREMENTS AND PROLONGING A NAVIGATION SOLUTION

Abstract

This monograph provides a comprehensive analysis of equipment used for high-precision positioning based on signals from global navigation satellite systems (GNSS), such as GPS, GLONASS, and others. The focus is on receivers and user-end equipment—referred to as “receivers-consumers of navigation information” that utilize GNSS signals for real-time, high-accuracy location and timing applications. The book explores the theoretical foundations, signal processing techniques, error sources, and methods of increasing positioning accuracy, including differential GNSS (DGNSS), carrier-phase tracking, and real-time kinematic (RTK) methods. It addresses both civilian and military applications and examines the requirements for hardware and software implementations in navigation receivers. Special attention is given to the system design of GNSS receivers, including architecture, antenna technologies, and integration with other sensors (e.g., inertial navigation systems). The authors also discuss certification standards, testing methods, and trends in the development of high-precision GNSS technologies. This work serves as both a technical reference and a practical guide for engineers, researchers, and developers involved in the design and deployment of GNSS-based positioning systems.

Claims29

Dependent claims

A method for rejecting anomalous measurements and prolonging a navigation solution of a global navigation satellite system (“GNSS”) receiver, the method comprising:

computing a calculated full phase (“FP”) for tracked navigation satellites (“NS”) based on the GNSS receiver's coordinate predictions;
computing IL discriminator signals for the tracked NS;
rejecting discriminator signals of M number of NS and generating corresponding flags;
computing CL discriminator signals based on K number of non-rejected IL discriminator signals;
calculating current estimates of coordinates and the GNSS receiver's time scale (“RTS”);
calculating FP for the tracked NS based on current estimates of the GNSS receiver coordinates;
calculating a correction IL discriminator signal for the M number of NS;
calculating an estimate of integer ambiguity (“IA”);
recalculating the correction IL discriminator signal based on the IA estimate;
calculating FP residual estimates;
calculating SF signals based on current estimates and prediction of receiver coordinates;
and
calculating receiver coordinate predictions.

10 more elements

Dependencies are inferred from the claim text.

Method for rejecting anomalous phase measurements and prolonging a navigation solution

Life of this patent

Method for rejecting anomalous phase measurements and prolonging a navigation solution

Life of this patent

Abstract

Claims29