A linear phase channel with phase delay Tp and group delay Tg must have ____________
(a) Tp = Tg = constant
(b) Tp ∝ f and Tg ∝ f
(c) Tp = constant and Tg ∝ f
(d) Tp ∝ f and Tg = constant
I have been asked this question in unit test.
Question is from Trigonometric Fourier Series topic in chapter Fourier Series of Signals and Systems