Receiver and Methods for Calibration Thereof

摘要

There is disclosed a receiver and associated methods in which a received signal can be sampled at the symbol rate rather than oversampled. This reduction in the sampling frequency compared with conventional receivers lowers power consumption. Quality metrics in receiving the data (e.g. packet error rate, etc) are not adversely affected by setting a programmable phase shift in the sampling frequency. The programmable shift can be selected through a calibration process using a known sequence of symbols, such as the short training field in 802.11 standards.

主权项

1. A receiver, comprising:
an input, for receiving a received signal having a symbol rate; a clock input, for receiving a clock signal; phase shift means, for applying a programmable phase shift to said clock signal; and an analogue to digital converter, for sampling the received signal at the symbol rate and in accordance with transitions in the phase-shifted clock signal, and generating a sampled signal.