adsb_deku

Decoder for ADS-B(Automatic Dependent Surveillance-Broadcast) Downlink Format protocol packets from 1090mhz. See dump1090_rs for a Rust demodulator. View planes in the sky around you, with only a rtl-sdr!

This library uses deku for deserialization of protocol. The apps are created with tui-rs.

Applications

Client Applications

Client applications use this library to display the data accumulated from an ADS-B demodulation server in various ways.

radar tui

An ADS-B client for the terminal written in Rust. Radar connects to an ADS-B demodulation server and stores this info, allowing an operator to control the display of the data.

• Map Tab - Plot currently detected aircraft on lat/long grid. Add known locations with --cities option.
• Coverage Tab - Plot all detected aircraft lat/long positions since starting radar. Features grayscale heatmap.
• Aircraft Tab - Show detailed table of information about currently detected aircraft. Set aircraft position as center lat/long.
• gpsd - Derive lat/long from a gpsd instance using --gpsd flag.

See apps/README.md for map control keybindings.

This application uses tui-rs for generating the display to terminal.

```text

Startup "radar" display in tui relative to your antenna position

cd apps cargo r --bin radar --release -- --lat="50.0" --long="50.0" --cities "(name,lat,long)" "(name,lat,long)" ```

1090

Display protocol data structures and currently tracked planes using this library in the same fashion as dump1090-fa to a terminal stdout. Optionally panic on missing implementation or fmt::Display, see > ./1090 -h.

```text

Startup 1090 decode chain using this library

cd apps cargo r --bin 1090 --release -- --debug ```

Server/Demodulation(External) Applications

This library contains logic for decoding a message, you must use a server for demodulating the message from 1090mhz into bytes usable by this library. These are called Server applications.

(Rust) dump1090_rs

Rust translation of the popular C dump1090 tools, with only demodulation and data forwarding functions. I recommend this for the full Rust experience. In my testing this has the same reliability as the C demodulator. ```text

cargo r --release ```

(C) dump1090_fa

This is the more tested application/implementation of 2400 sample rate demodulation used by flightaware.

```text

./dump1090 --net --quiet ```

adsb_deku library

Add the following lines to your Cargo.toml file: text adsb_deku = "*"

Downlink Format support

| DF | Name | Section | | ---- | ------------------------------- | ----------- | | 0 | Short Air-Air Surveillance | 3.1.2.8.2 | | 4 | Surveillance Altitude Reply | 3.1.2.6.5 | | 5 | Surveillance Identity Reply | 3.1.2.6.7 | | 11 | All Call Reply | 2.1.2.5.2.2 | | 16 | Long Air-Air Surveillance | 3.1.2.8.3 | | 17 | Extended Squitter(ADS-B) | 3.1.2.8.6 | | 18 | Extended Squitter(TIS-B) | 3.1.2.8.7 | | 19 | Extended Squitter(Military) | 3.1.2.8.8 | | 20 | Comm-B Altitude Reply | 3.1.2.6.6 | | 21 | Comm-B Identity Reply | 3.1.2.6.8 | | 24 | Comm-D | 3.1.2.7.3 |

Comm-B support

| BDS | Name | Table | | ---- | ----------------------------------- | ----------- | | (0,0) | Empty | | | (1,0) | Data Link Capability | A-2-16 | | (2,0) | Aircraft Identification | A-2-32 |

ME support for ADSB Messages

| ME(Type Code) | Name | | --------------- | ------------------------------ | | 0 | NoPosition | | 1..=4 | AircraftIdentification | | 5..=8 | SurfacePosition | | 9..=18 | AirbornePositionBaroAltitude | | 19 | AirborneVelocity | | 20..=22 | AirbornePositionGNSSAltitude | | 23 | Reserved0 | | 24 | SurfaceSystemStatus | | 25..=27 | Reserved1 | | 28 | AircraftStatus | | 29 | TargetStateAndStatusInformation| | 30 | AircraftOperationalCoordination| | 31 | AircraftOperationStatus |

example

The following example shows off reading from ADS-B bytes from a demodulation server into our Frame struct and then executing the fmt::Display Trait for display of information. ```rust use hexlit::hex; use adsbdeku::Frame; use adsbdeku::deku::DekuContainerRead;

let bytes = hex!("8da2c1bd587ba2adb31799cb802b"); let frame = Frame::frombytes((&bytes, 0)).unwrap().1; asserteq!( r#" Extended Squitter Airborne position (barometric altitude) Address: a2c1bd (Mode S / ADS-B) Air/Ground: airborne Altitude: 23650 ft barometric CPR type: Airborne CPR odd flag: even CPR latitude: (87769) CPR longitude: (71577) "#, frame.to_string() ); ```

Build the docs(> cargo doc), or see docs.rs for complete public API documentation.

Contributing

testing

Test data was generated using a rtl-sdr with dump1090-fa. ```text

cargo test ```

For testing this library, you can run our app 1090 with the following options for exiting program on missing fmt::Display or bytes protocol decode. ```text

cargo r --release --bin 1090 -- --debug --disable-airplanes --panic-decode --panic-display ```

This library is also fuzzed, ensuring no panic when parsing from demodulated bytes. ```text

cargo fuzz run fuzztarget1 ```

fmt

```text

cargo +nightly fmt ```

Benchmark

Benchmarking is done against a file containing 215606 ADS-B messages: lax-messages.txt. Quick math (215606 / 606.80) says the average speed of decoding is around 35.89 ms a message (with some variance from reading a file). text lax_messsages time: [605.73 ms 606.80 ms 607.89 ms]

Derivation

Derived from Aeronautical Telecommunications Volume IV: Surveillance and Collision Avoidance Systems, Fifth Edition and ICAO 9871.