Module gnss_multignss_parser

GNSS Multi-System NMEA Parser

This module provides data structures and logic for parsing NMEA sentences from multiple GNSS systems (GPS, GLONASS, GALILEO, BEIDOU). It supports extracting satellite information, position, DOP values, and fusing positions from different systems for improved accuracy.

Features

• Parses GGA, RMC, VTG, GSA, GSV, and GLL sentences for supported systems
• Tracks satellite info and usage per system
• Calculates fused position using weighted averaging and advanced filtering
• Provides utility functions for latitude/longitude parsing

Usage

use nema_parser::gnss_multignss_parser::GnssData;
let mut gnss = GnssData::new();
gnss.feed_nmea("$GNGGA,123519,4807.038,N,01131.000,E,1,08,0.9,545.4,M,46.9,M,,*47");
gnss.calculate_fused_position();
if let Some(fused) = &gnss.fused_position {
    println!("Fused position: {}, {}", fused.latitude, fused.longitude);
}

Structs

FusedPosition

Fused position result from multiple GNSS systems.

GnssData

Main GNSS data structure holding parsed information and fused position.

GnssSystemData

Data for a single GNSS system (GPS, GLONASS, GALILEO, BEIDOU).

SatelliteInfo

Information about a single satellite, including PRN, elevation, azimuth, and SNR.