The present invention is directed towards a data detector for deriving a data
signal from an incoming radio frequency input. The data detector comprises a delay
logic which receives an unfiltered signal in quadrature and in-phase components,
and applies a delay to each of the in-phase and quadrature phase components of
the unfiltered input signal. The detector further comprises a first multiplication
logic that multiplies the delayed in-phase component of the unfiltered signal by
the quadrature phase component of the unfiltered signal to obtain a first result,
and a second multiplication logic that multiplies the delayed quadrature phase
component of the unfiltered signal by the in-phase component of the unfiltered
signal to obtain a second result. Finally, an adder adds the first result with
the second result to generate a data signal. In alternative embodiments a post
detection correction algorithm may be added to improve performance.
