Signal processing device and image display apparatus including the same

An image display apparatus comprising:

• a signal processing device to process a baseband signal demodulated from an RF signal;
• and
• a display to display an image based on signal received from the signal processing device,
• wherein the signal processing device comprising:
• a synchronizer to synchronize a signal based on the baseband signal;
• a channel estimator to perform interference estimation or channel estimation based on a signal output from the synchronizer;
• an equalizer to perform equalization based on a signal output from the channel estimator;
• an error corrector to perform error correction based on a signal output from the equalizer;
• and
• a mean square error calculator to calculate a mean square error based on a difference between an input signal input from the equalizer and a reference signal,
• wherein when the RF signal includes a co-channel interference signal, the error corrector performs error correction by using a mean square error in a time domain or mean square errors in a time domain and a spatial domain.

An image display apparatus, comprising:

• a signal processing device to process a baseband signal demodulated from an RF signal:
• a controller to extract a broadcast image from a broadcast signal received from the signal processing device;
• and
• a display to display the extracted broadcast image;
• wherein when the RF signal includes a co-channel interference signal, the display displays a broadcast image processed by the signal processing device to remove a defect.