A system and method for mitigating co-channel interference is disclosed. A
radar system detects targets from received signals at an antenna array.
The received signals include direct signals and target signals transmitted
from remote transmitters. An antenna array receives the signals. A signal
processing system is coupled to the antenna array to perform processing
operations on the received signals. The processing system includes a
primary cancellation component and a secondary cancellation component. A
primary illuminator signal is cancelled from the received signals by the
primary cancellation component. An adaptive beam former obtains a
secondary illuminator signal from the received signals. A reference
regenerator regenerates the secondary illuminator signal. An adaptive
cancellation filter removes noise from the secondary illuminator signal.
The secondary cancellation component mitigates co-channel interference by
canceling the secondary illuminator signal from the received signals.
