Question

Pseudo noise signal has _______ and _______ SNR for the same peak transmitted power.

(a) Larger, smaller

(b) Smaller, larger

(c) Larger, larger

(d) Smaller, smaller

This question was addressed to me in a job interview.

My query is from Equalization and Non Coherent Detection in section Baseband Demodulation and Detection of Digital Communications

Answer 1

The correct choice is (c) Larger, larger

To elaborate: A training pulse is applied to the equalizer and corresponding impulse response is observed. Pseudo noise is preferred as the training pulse as it has larger SNR value and larger average power value.