Receiver and adaptive equalizing method

A receiver comprising:

• a blind equalization apparatus that judges transmission data series based on adaptive equalization processing, the blind equalization apparatus including
• a CIR initial value setting unit that sets a plurality of channel impulse response fixed initial values of different timings;
• an adaptive equalizing unit that individually judges presence or absence of a timing slip when each fixed initial value is used, by judging a distance between a first unique word disposed at a front side of a burst format that constitutes a received signal and a second unique word disposed at a back side of the burst format, and obtains a decision value by using a channel impulse response fixed initial value that does not generate a timing slip and the received signal;
• a timing detecting unit that detects a data timing from the decision value;
• and
• a decision value extracting unit that extracts the decision value based on the detected timing.

A method of performing adaptive equalization processing, the method comprising:

• detecting a timing suitable for the adaptive equalization processing, by using a first unique word that is disposed at a front side of a burst format that constitutes a received signal;
• extracting a standardized received signal based on the detected timing;
• estimating an initial value of a channel impulse response by using a first unique word included in the extracted received signal;
• setting a plurality of channel impulse response initial values of different timings based on the estimated initial value;
• and
• individually judging presence or absence of a timing slip when each initial value is used, by judging a distance between the first unique word and a second unique word disposed at a back side, and obtaining a decision value by using a channel impulse response initial value that does not generate a timing slip and the extracted received signal.

A method of performing adaptive equalization processing, the method comprising:

• setting a plurality of channel impulse response fixed initial values of different timings;
• individually judging presence or absence of a timing slip when each fixed initial value is used, by judging a distance between a first unique word disposed at a front side of a burst format that constitutes a received signal and a second unique word disposed at a back side of the burst format, and obtaining a decision value by using a channel impulse response fixed initial value that does not generate a timing slip and the received signal;
• detecting a data timing from the decision value;
• and
• extracting the decision value based on the detected timing.