ITERATIVE CHANNEL ESTIMATION USING PILOT SIGNALS

摘要

A set of symbols is transmitted over a communication path affected by fading. The symbols are detected by determining a first channel estimate on the basis of pilot symbols (3) so as to provide first estimated symbols (6), and then determining a second channel estimate on the basis of the first estimated symbols so as to provide second estimated symbols. The number of first estimated symbols (6) involved in the determination of the second channel estimate is substantially equal to the number of pilot symbols (3) involved in the determination of the first channel estimate. This allows the same channel estimation filter circuits to be used in both iterations.