| 摘要 |
<p>A channel estimator for estimating an effective channel from a receive sequence, the receive sequence including a superposition of NT pilot sequences being transmittable from NT transmitting points through NT communication channels to a receiving point, wherein NT-1 pilot sequences are modulated versions of a first pilot sequence, wherein the effective channel comprises a superposition of the NT channels extending from the NT transmitting points to the receiving point, comprises a selector (101) for providing NT sets of selected values, wherein the selector (101) is operative for providing a m<th> set of selected values of the NT sets of selected values by selecting every (DNT)<th> value from a set of values comprised by the receive sequence starting with a m<th> value in the set of values, wherein D denotes a pilot spacing, a filter (105) for filtering the m<th> set of selected values to provide a m<th> set of filtered values comprising an estimate of the effective channel at points associated with the m<th> set of filtered values.</p> |
