Question

Equalization method which is done by tracking a slowly time varying channel response is

(a) Preset equalization

(b) Adaptive equalization

(c) Variable equalization

(d) None of the mentioned

This question was posed to me in a national level competition.

This intriguing question originated from Equalization and Non Coherent Detection topic in portion Baseband Demodulation and Detection of Digital Communications

Answer 1

The correct option is (b) Adaptive equalization

For explanation I would say: This method is implemented to perform tap weight adjustment periodically or continually. Equalization is done by tracking a slowly varying channel response.