Patent ID: 8385484

Claim:
A method for canceling an interference signal from a received signal, comprising: performing a time-frequency transform on the received signal; computing an estimated frequency of the interference signal using a result of the time-frequency transform; obtaining an estimated amplitude of the interference signal; generating a reference signal using the estimated frequency and the estimated amplitude of the interference signal; generating an error signal using the reference signal and the received signal based on minimum correlation criteria, wherein the error signal is defined as one of the following equations: σ( n )=( R ( n )− I ′( n ))conj( I ′( n )) or σ( n )=( R ( n )− I ′( n ))conj( R ( n )), wherein, R(n) represents the received signal, I′(n) represents the reference signal, and n represents sampling times; updating the reference signal using the error signal based on an adaptive algorithm to minimize a difference between the reference signal and the interference signal; subtracting in time domain the reference signal from the received signal to produce a refined signal; and outputting the refined signal.