DOUBLE DECODER SYSTEM FOR DECODING OVERLAPPING AIRCRAFT SURVEILLANCE SIGNALS

摘要

In one example of this disclosure, two decoders perform a method for detecting and decoding overlapping radio surveillance signals. The first decoder detects a first automatic dependent surveillance - broadcast (ADS-B) preamble from a signal stream received via a front-end unit. The first decoder decodes the first ADS-B signal associated with the first ADS-B preamble. The second decoder detects a subsequent ADS-B preamble from the signal stream while the first decoder is decoding the first ADS-B signal. The second decoder decodes the subsequent ADS-B signal associated with the subsequent ADS-B preamble.