Patent ID: 6628923
Filing Date: 2003-09-30
Classification: H03H

Abstract:
An adaptive compensating device for compensating for non-linearity of one of a radio frequency and intermediate frequency device, the adaptive compensating device comprising:an adjustable output digital filter providing as an output signal of said digital filter a signal to the one of a radio frequency and intermediate frequency device; and a means for adjusting the output signal of said digital filter to compensate for non-linearity of the one of a radio frequency and intermediate frequency device by pre-distorting an input signal to received by the one of a radio frequency and intermediate frequency device according to a correction signal so that the one of a radio frequency and an intermediate frequency device outputs a signal that is substantially linear with respect to at least one of amplitude and phase of the input signal over a predetermined bandwidth, the correction signal being a static pre-calculated signal based on measured characteristics of the non-linearity of the one of the radio frequency and intermediate frequency device, the means for adjusting being preconfigured with the correction signal.