Patent ID: 8064865

Claim:
An interference cancellation system, comprising: a) an adaptively tuned sloped control (ATSC) module ( 200 ) for providing a tuning procedure directed to an ASMF control function to the band of interference and for externally controlling the ASMF control function subsequent to said tuning, said adaptively tuned sloped control (ATSC) module 200 comprising: an inline variable lobe filter structure (VLFS) ( 201 ) for providing controlled variable time delay for generating a broadband RF tuning filter formed by a delay T and a slope control filter lobe formed by a first delay (T) ( 205 ) and a second delay (2nT) ( 208 ) yield a total time delay of (2n+1)T centered in the null of the tuning filter and skewed by an external slope control signal; an offline time delay tuning control (TDTC) element ( 202 ) for receiving signal samples output from the inline variable lobe filter structure (VLFS) 201 to control a first variable time delay element (T) 205 of the inline variable lobe filter structure (VLFS) 201 to provide said controlled variable time delay to generate said broadband RF tuning filter and to further control a second variable time delay element (2nT) 208 of the inline variable lobe filter structure (VLFS) 201 to provide said controlled variable time delay to generate said slope control filter lobe; and b) adaptive control loop ( 6 ) for adjusting a complex weighting of a delayed coupled signal to maximally cancel a propagated received signal ( 30 ).