A method and device used in wireless mobile communication for multi-selection
signal
detection. In order to minimize the influence of frequency shift and phase rotation
that reduces signal detection performance, the total number of samples used for
the signal detection may be divided into an equal number of segments, on which
the coherent accumulating sum is calculated. Various possible combinations will
be made according to each coherent result. The combinations may then be coherent
accumulated again. Finally, the optimum results may be selected as the detection
results. To accomplish this result, the input signal is input to the matched filter
unit, whose output will be sent to each branch unit. The phase adjustment and the
coherent accumulation of the signal will be performed in each respective branch
unit, and then sent to the branch selection unit where the branch output with the
largest mode is selected as the output.
