| 摘要 |
Diversity path signals, each comprising time division multiplexed symbols (DATA, SYNC) in a time slot including known symbols, are combined with respective weights to reduce co-channel interference. Initial weights are determined (F1), using a window on the known symbols (SYNC), to optimize signal to interference plus noise ratio. These weights are used (F2) to determine symbols adjacent the window, and the window is moved (F3) to include determined symbols and the weights are redetermined. This process is repeated (F4) with the window being moved progressively, preferably with successive positions (F1, F3) overlapping, throughout the time slot. The initially known symbols can comprise synchronization symbols and/or CDVCC (coded digital verification colour code) symbols. Desirably, both can be used with respective windows being moved in opposite directions through symbols between them to provide two results for each such symbol, the better one of which is selected in dependence upon a monitoring of possibly averaged errors for the symbols.
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