Method and circuit configuration for calculating the magnitude of a complex signal

摘要

The method involves providing a smoothed magnitude (o) by processing the input values by two cascaded coordinate rotation digital computer-methods carried out by positive feedback. Smoothing of the magnitude is carried out by an implicitly contained low-pass filter. An averaged magnitude is provided at the output with each new complex input sampling value over the time. An independent claim is also included for a circuit configuration for continuous computation of an averaged magnitude of a complex signal.