Method for reducing effects of interference, and receiver

A method for reducing the effects of noise, comprising:

• forming sample signals by taking samples from a received signal, the noise in the samples being converted to white noise;
• dividing signals comprising white noise among a plural number of signal groups;
• filtering sample signals of each signal group in a signal-group-specific filter;
• and
• detecting a signal formed of at least one signal of each signal group comprising filtered signals.

A receiver for reducing the effects of noise, comprising:

• at least one sampling means for producing sample signals from a received signal;
• a whitening means for converting the noise in the sample signals to white noise;
• digital filters for filtering sample signals comprising white noise;
• a computation means for computing filter tap coefficients for the filter from the sample signal prior to the filtering of the sample signals;
• summers, each one of which is arranged to receive a filtered signal from at least one filter, the summers being arranged to sum the signals they receive from the filters to produce first summed signals;
• and
• a detector for summing the first summed signals to produce the actual summed signal and for detecting the actual summed signal.

A receiver for reducing the effects of noise, comprising:

• at least one sampling means for producing sample signals from a received signal;
• a whitening means for converting the noise in the sample signals to produce white noise and for dividing signals comprising white noise among a plural number of signal groups;
• a signal-group-specific digital filter for filtering the sample signals in the signal group;
• and
• a detector for detecting a signal formed of at least one signal of each signal group comprising filtered signals.