In a communication system in which an incoming signal is pulse shaped prior to
detecting the information bearing point of the signal, processing overhead can
be significantly reduced by only processing the sample points corresponding to
the information bearing point and two points bounding the information bearing point.
During signal acquisition, the signal is over sampled and the pulse shaping filter
processes every sample point, or every Nth sample point in the case of down sampling.
Once the sample point corresponding to the information bearing point is determined,
the pulse shaping filter can be instructed to only process the sampling corresponding
to the information bearing point and two neighboring samples. The system and method
is adaptive, in that the samples that are processed can shift as the information
bearing point shifts relative to the sample points. This is accomplished by re-synchronizing
the timing of the received slot.
