AMPLIFICATION CONTROL SCHEME FOR A RECEIVER

摘要

A system is provided for controlling amplification in a receiver (500). The receiver amplifies (500) a signal in accordance with a controlled gain to enhance the reliability of demodulating the received signal. A lower frequency signal is derived by down-converting (502) the received signal. The derived lower frequency signal is converted into a digital baseband signal (504). A compensatory direct current offset is determined by evaluation of one of trailing symbols and a defined sequence of a data packet of the received signal (506). A compensatory direct current offset is manipulated with respect to a digital baseband signal to compensate for an unwanted direct current offset of the digital baseband signal, indicative of a frequency difference between the received signal and the transmitted signal (508).