| 摘要 |
PURPOSE:To attain correct fading compensation regardless of the inserting position of a pilot symbol in a frame by operating compensation by using the pilot symbol of a pertinent frame for compensating a fading distortion and the pilot symbols of the preceding and succeeding frames at a reception side. CONSTITUTION:A pilot symbol switching control part 8 judges the pilot of he pertinent frame for compensating the fading distortion from a pilot detection signal and a frame signal from a frame/pilot detecting part 1, selects a received signal when the frame is its own frame, selects a signal phase-corrected by a phase correcting circuit 7 when the frame is the other frame. and outputs only the pilot symbol in the received symbol to a fading distortion amount calculating part 5. A fading distortion estimating and compensating part 6 estimates fading distortion amounts in the data symbol based on the fading distortion amounts of the pilot symbol searched by the fading distortion amount calculating part 5 by using an interpolating method, and operates the compensation by multiplying the inverse number of the distortion amounts by a data symbol inputted from a data delay part 4. |
