satellite-navigation

A novel framework for processing raw GNSS measurements on an Android smartphone

This is a repository of the Open Aided Navigation project. The project aims to demonstrate and explain state of the art methods of modern aided inertial and satellite (GNSS) navigation, and multi-sensor localization. The software provided in this repository is written in Matlab.

Multi-constellation GNSS SDR signal simulator in Rust — GPS (L1CA/L5/L2C/L1C), Galileo (E1/E5a/E5b/E6), BeiDou (B1C), GLONASS (G1). Generates IQ baseband samples from RINEX 3.04 ephemeris.

Qelaro is an open-source GNSS and geodetic processing toolbox

A GNSS urban PNT learning portfolio for robust pseudorange positioning, LEO-like aiding, and pseudorange-correlogram toy experiments.

Software-defined GNSS positioning engine. Compute position entirely in software from raw RTCM3 MSM4 observations and broadcast ephemeris — Keplerian orbits, Saastamoinen tropo, Klobuchar iono, Hatch-smoothed pseudoranges, multi-constellation WLS. DGNSS and RTK planned.

Full GNSS receiver chain in MATLAB: CAF acquisition on real captures, DLL tracking & multipath analysis. GPS · Galileo · GLONASS · BeiDou.

Simple C++ Simulator and ROS 2 Node for GNSS.

A novel deep transfer learning framework for forecasting NavIC satellite ephemeris and clock errors. PRESTO overcomes extreme data scarcity using a hybrid architecture (GNNs + Semiparametric Decomposition + Autoformers) and synthetic data augmentation to generate normally distributed prediction residuals.

AI system for detecting GNSS spoofing attacks using physics-aware feature engineering and ML ensemble models.

Official Arduino library for interfacing with the 7Semi L89HA GNSS Module over UART. This library enables easy communication and data parsing of NMEA sentences, allowing you to retrieve GPS location, time, and satellite data with minimal effort.

Ublox Sam M8Q GNSS Module for GPS, GLONASS, and Galileo Navigation Breakout Board.

The aim is to perform position calculation easily with the help of the RINEX file.

北斗卫星导航系统定位 - RINEX解析、卫星位置计算、单点定位与连续定位，完整的GNSS定位解算流程

Offline GPS L1 C/A software receiver and GPUI desktop analysis app in Rust, with acquisition, tracking, NAV decoding, continuous PVT, and replay.

A novel deep transfer learning framework for forecasting NavIC satellite ephemeris and clock errors. PRESTO overcomes extreme data scarcity using a hybrid architecture (GNNs + Semiparametric Decomposition + Autoformers) and synthetic data augmentation to generate normally distributed prediction residuals.

MATLAB/Simulink implementation of GPS carrier tracking loops (PLL/FLL) with performance analysis

Python toolkit demonstrating GNSS mission-analysis concepts: Walker Delta notation, constellation availability, and simplified Galileo-altitude manoeuvre budgeting.

Star trackers are ubiquitous spacecraft sensors that typically provide high-accuracy attitude information to the spacecraft’s guidance, navigation, and control (GNC) system.

C++ implementation of EKF_GEOS3, an Extended Kalman Filter for GEOS-3 satellite orbit determination. Features custom matrix algebra, JPL DE430 ephemerides, IERS corrections, and full astrodynamics modeling.