Frequency domain estimation of equalizer coefficients for dual antenna radio

摘要

A Radio Frequency receiver includes an RF front end and a baseband processing module coupled to the RF front end that is operable to receive a time domain signal that includes training symbols and data symbols. The baseband processing module includes a channel estimator operable to process the training symbols to produce a channel estimate, a Fast Fourier Transformer operable to convert the channel estimate to the frequency domain, a weight calculator operable to produce frequency domain equalizer coefficients based upon the frequency domain channel estimate, an Inverse Fast Fourier Transformer operable to converting the frequency domain equalizer coefficients to the time domain, and an equalizer operable to equalize the data symbols using the time domain equalizer coefficients.