The pattern recognition adaptive controller (20) receives a sampled signal representative of the controlled variable, and determines a smoothed signal based on the sampled signal.

The sampled signal is also received.

The sampled analog signal is processed.

The filtered signal is time scanned.

The interpolator outputs a first up sampled signal.

The sampled distortion signal is scaled, and subtracted from the sampled signal of interest to obtain reduced-interference signal samples.

The signal components are combined (66) into a processed sampled signal.

The in-phase signal is sampled and quantized producing an in-phase sample stream, and the quadrature phase signal is sampled and quantized producing a quadrature sample stream.

Differences between first sampled signal values, associated with sampling locations of the second sampled signal values, are measured.

In some embodiments, the scaling factor is determined by correlating the sampled signal of interest with the sampled distortion signal.

The intermediate frequency signal (IF) is sampled with a certain sampling rate and the sampled signal is digitized into a digital signal.

The controller (10) receives a sampled signal representative of the controlled variable, and creates a digital control signal (40) based on the sampled signal.

The pulse train signal is sampled to form a digitized signal.

The sampled signal is spectrally characterized across a frequency band of interest to produce a spectral characterization of the sampled signal.

The integrator outputs an integrated signal.