Question

A RAKE receiver uses __________ to separately detect the M strongest signals.

(a) Single correlator

(b) Multiple correlator

(c) Single IF receiver

(d) Multiple IF receivers

The question was asked in an internship interview.

I'd like to ask this question from Rake Receiver topic in division Equalization, Diversity and Channel Coding of Wireless/Mobile

Answer 1

Correct answer is (b) Multiple correlator

To explain I would say: A RAKE receiver uses multiple correlators to separately detect the M strongest multipath components. Demodulation and bit decisions are then based on the weighted ouputs of the M correlators.