| 摘要 |
PROBLEM TO BE SOLVED: To obtain a receiver for estimating a transmission path with high accuracy while preventing an increase in the amount of memory used.SOLUTION: The receiver pertaining to the present invention comprises: pilot part transmission path estimation means (pilot separation unit 61, replica generation unit 62, replica multiplication unit 63) for calculating a transmission path estimated value at a pilot signal position; a transmission path estimation unit 65 for calculating a transmission path estimated value at a data signal position by adding transmission path estimated values at a plurality of pilot signal positions after weighting the same; a weighting table unit 66 for retaining multiple kinds of weighting coefficients used for weighting by correlating the same with a plurality of assumed transmission path states; transmission path comparison means (pilot transmission path estimation unit 68, estimation error calculation unit 69, estimation error comparison unit 70) for comparing the actual transmission path state and the plurality of assumed transmission path states; and a table interpolation unit 67 for generating a new weighting coefficient when a transmission path state close to the actual transmission path state is nonexistent. |
