Patent ID: 8344944

Claim:
A method for suppressing interference signals within a digitized waveform to allow detection of data pulses contained therein comprising the steps of: obtaining from the digitized waveform an amplitude spectrum having a plurality of positive frequency points each having a respective amplitude level, the digitized waveform received by a receiver sub-module of a suppressor module; setting, with a threshold sub-module of the suppressor module, an amplitude threshold level; clipping, with a clipping sub-module of the suppressor module, said amplitude spectrum to obtain a clipped amplitude spectrum; dividing, with a frequency bin sub-module of the suppressor module, said clipped amplitude spectrum into a plurality of frequency bins based on a frequency bin size; obtaining, with an IFFT sub-module of the suppressor module, from the positive frequency points within each frequency bin a respective amplitude-time series for each frequency bin; performing, with an approximation sub-module of the suppressor module, an approximation on each of said respective amplitude-time series to obtain for each a corresponding frequency bin time series; and stacking, with a stacking sub-module of the suppressor module, said corresponding frequency bin time series successively to form a time-frequency spectrogram thereby suppressing the interference signals and allowing detection of the data pulses.