Patent ID: 8055226

Claim:
An RF receiver comprising: an input section having a first frequency response characteristic for receiving an input signal; a frequency translation device having a second frequency response characteristic coupled to an output of the input section for converting power in the input signal at a first frequency to power at a second frequency; an IF section having a third frequency response coupled to the frequency translation device to receive the power at the second frequency and produce digitized data; a normalization signal source for selectively providing a test signal at a reference frequency to the input of the input section; and a data processor coupled to the IF section for receiving the digitized data, the data processor having calibration data representing the combination of the first, second and third frequency response characteristics as a complex function for a plurality of center frequencies, the calibration data being based upon a multi-dimensional model for the frequency translation device that includes at least center frequency and offset frequency for each of a plurality of center frequencies and the data processor (i) calculating a normalization frequency response for the digitized data produced by the test signal, (ii) determining a relative frequency response at a desired center frequency for the input signal from the calibration data, (iii) combining the normalization and relative frequency responses to produce an overall frequency response, and (iv) configuring an inverse filter from the overall frequency response for correcting the digitized data produced by the input signal.