Digital receiver method and apparatus using differential detection and equalization-based techniques

摘要

Methods and apparatus are provided for processing a signal received on a channel. The intersymbol interference on the channel is initially evaluated and a detection method is selected from a plurality of available detection methods based on the intersymbol interference evaluation. For example, the plurality of available detection methods may include a differential detection technique and an equalization-based technique. The equalization technique may be, for example, a decision feedback equalization technique. The intersymbol interference evaluation may comprise, for example, a comparison of the signal to noise ratio at an output of a differential detector for at least a portion of a frame to a predefined threshold.