GNSS Multi-System NMEA Parser

The 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.

GNSS Multi-System NMEA Parser Example

The binary reads NMEA sentences from a serial port, parses them using the GNSS multi-system parser, and prints individual GNSS system data as well as a fused position estimate.

Features

Fast and efficient NMEA sentence parsing
Easy integration with Rust projects
Extensible for custom sentence types
Supports common NMEA sentence types (e.g., GGA, RMC, GSA)
Error handling for invalid or malformed sentences
Lightweight and dependency-free

Installation

Add the following to your Cargo\.toml:

[dependencies]

nema-parser = "0.1"

Usage

use nema_parser::NmeaParser;

fn main() {
    let sentence = "$GPGGA,123519,4807.038,N,01131.000,E,1,08,0.9,545.4,M,46.9,M,,*47";
    let result = NmeaParser::parse(sentence);
    println!("{:?}", result);
}

Examples

Parsing a GGA Sentence

use nema_parser::NmeaParser;

fn main() {
    let gga_sentence = "$GPGGA,123519,4807.038,N,01131.000,E,1,08,0.9,545.4,M,46.9,M,,*47";
    let parsed = NmeaParser::parse(gga_sentence).unwrap();
    println!("Parsed GGA: {:?}", parsed);
}

Handling Invalid Sentences

use nema_parser::NmeaParser;

fn main() {
    let invalid_sentence = "$INVALID,NMEA,SENTENCE";
    match NmeaParser::parse(invalid_sentence) {
        Ok(parsed) => println!("Parsed: {:?}", parsed),
        Err(e) => println!("Error: {}", e),
    }
}

Building

cargo build

Running Tests

cargo test

Documentation

Generate and view the documentation locally:

cargo doc --open

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

Roadmap

Add support for additional NMEA sentence types
Improve error messages for invalid sentences
Add async support for streaming NMEA data
Provide more detailed examples and tutorials

License

Distributed under the MIT License. See LICENSE for more information.

Acknowledgments

Inspired by the need for efficient NMEA parsing in Rust
Contributions from the open-source community

nema-parser 0.1.3