Method and system for receiving a multi-carrier signal

A receiver for receiving a multi-carrier signal, the receiver comprising:

• a first circuitry for detecting a presence of at least one impulse interference within the signal,
• a second circuitry for blanking samples where significant amount of the impulse noise caused by the at least one impulse interference is present to obtain a signal with blanking, and for determining an estimate of the signal with blanking,
• a third circuitry for determining carrier correction values, which carrier correction values are based on deviations of certain carrier values compared to prior known information, and the blanking, and
• a fourth circuitry for influencing the estimate by the carrier correction values to obtain a representation of a desired signal.

A system for receiving a multi-carrier signal, the system comprising:

• means for detecting a presence of at least one impulse interference within the signal,
• means for blanking samples where significant amount of the impulse noise caused by the at least one impulse interference is present to obtain a signal with blanking,
• means for determining an estimate of the signal with blanking,
• means for determining carrier correction values, which carrier correction values are based on deviations of certain carrier values compared to prior known information, and the blanking, and
• means for influencing the estimate by the carrier correction values to obtain a representation of a desired signal.

A computer program product comprising a program of instructions executable by a computing system for processing a reception of a broadcast multi-carrier signal, the computer program product comprising:

• computer program code for causing the system to detect a presence of at least one impulse interference within the signal,
• computer program code for causing the system to blank samples where significant amount of the impulse noise caused by the at least one impulse interference is present to obtain a signal with blanking,
• computer program code for causing the system to determine an estimate of the signal with blanking,
• computer program code causing the system to determine carrier correction values, which carrier correction values are based on deviations of certain carrier values compared to prior known information, and the blanking, and
• computer program code for causing the system to influence the estimate by the carrier correction values to obtain a representation of a desired signal.

A method for receiving an OFDM signal, the method comprising the steps of:

• detecting a presence of at least one impulse burst,
• blanking samples which are affected by the at least one impulse burst,
• calculating a time domain to frequency domain transform of the signal with the blanked samples to obtain an estimate,
• calculating a difference between observed pilot values and known values for pilot carriers,
• calculating weight values coinciding with a blanking window position,
• calculating carrier correction values based on the difference and the weight values for each carrier, and
• subtracting the carrier correction values from the estimate to obtain a representation of a desired signal.