JSignal

JSignal is a SIGINT toolkit for receiving, decoding and storing radio signals. It currently supports ADS-B, and the architecture is built to extend to other signals, with AIS (ship tracking) planned next.

Architecture

• Decoder (C++): reads 1090 MHz ADS-B from an SDR and publishes per-aircraft messages to an MQTT broker.
• Backend (Spring Boot): subscribes to the MQTT topics, persists records to PostgreSQL and serves the history over a REST API.
• Frontend (Flutter): consumes the live MQTT feed and the backend's recorded history over REST.

Status

In active development.