Abstract: A system and method for self-interference cancellation using a full duplex adaptive array includes at least four ports within the network array, with at least two transmission elements at a first port and a second port, and at least one receiving element at a third port and a fourth port. A signal is transmitted along a first network path from the two transmission elements of the first port to the receiving element of the fourth port. The signal is transmitted along a second network path from the two transmission elements of the first port to the receiving element of the third port. A weight is applied to at least one of the two transmission elements of the first port, which modifies the signal transmitted along the second network path to cancel signal interference caused by the signal at the third port during full duplex operation of the network array.

Abstract: A system and method for self-interference cancellation using a full duplex adaptive array includes at least four ports within the network array, with at least two transmission elements at a first port and a second port, and at least one receiving element at a third port and a fourth port. A signal is transmitted along a first network path from the two transmission elements of the first port to the receiving element of the fourth port. The signal is transmitted along a second network path from the two transmission elements of the first port to the receiving element of the third port. A weight is applied to at least one of the two transmission elements of the first port, which modifies the signal transmitted along the second network path to cancel signal interference caused by the signal at the third port during full duplex operation of the network array.

Abstract: A method and system is provided for detecting and characterizing pulsed threat radar emitters through heavy in-band interference. System includes an advanced digital signal processing method provides spatial and temporal interference cancellation, super-resolution direction-finding, and high resolution spectrum analysis techniques. The system receives the digitized output of a discriminator bank and produces highly accurate threat pulse radio frequency estimates. The invention further provides a two-channel configuration for a DF subsystem, to perform adjacent-beam direction-finding through severe interference environments. The invention provides increased sensitivity, increased frequency accuracy, and up to 40 dB of increased interference look-through capability in ES system but remains transparent to ES system functioning and to ES system operators.

Abstract: A method and system is provided for detecting and characterizing pulsed threat radar emitters through heavy in-band interference. System includes an advanced digital signal processing method provides spatial and temporal interference cancellation, super-resolution direction-finding, and high resolution spectrum analysis techniques. The system receives the digitized output of a discriminator bank and produces highly accurate threat pulse radio frequency estimates. The invention further provides a two-channel configuration for a DF subsystem, to perform adjacent-beam direction-finding through severe interference environments. The invention provides increased sensitivity, increased frequency accuracy, and up to 40 dB of increased interference look-through capability in ES system but remains transparent to ES system functioning and to ES system operators.