Wide band noise early detection and protection architecture for a frequency domain equalizer

摘要

Apparatus and methods are described for detecting an impulse noise and for controlling frequency domain equalizer (FEQ) coefficient updating in response to impulse noise detection. Upon detection of the impulse noise, FEQ coefficient updating may immediately be frozen to prevent the FEQ coefficients from being corrupted by the impulse noise. The FEQ coefficient updating may be resumed after the impulse has ended, allowing for normal operation and channel detection.