DFE (Decision Feedback Equalizer)

A Decision Feedback Equalizer (DFE) is a signal processing technique used in communications to improve the clarity of received signals. It works by first predicting the likely errors based on previously decoded data, then using this information to adjust the current signal. Imagine trying to understand a conversation in a noisy room; the DFE helps filter out the noise and corrects misunderstandings based on what was already said. This allows for more accurate data transmission, especially in environments where signals can overlap or distort, enhancing overall communication performance.