Decoding ADS-B on FPGA
Overview
This project implements a complete, hardware-based ADS-B receiver pipeline by interfacing a HackRF One directly with a Gowin FPGA.
Standard ADS-B setups perform the signal processing in software. In this project, all of the signal processing occurs in custom digital logic.
By tuning a HackRF One to 1090MHz, the system captures live transponder messages from overhead aircraft. Instead of relying on an SDR application to process these signals, I modified the HackRF's internal CPLD firmware to duplicate and stream the raw I/Q samples directly to an FPGA. The FPGA processes these signals and sends the extracted ADS-B message to my computer via UART.