Final answer:
Baseband PAM is a digital modulation technique where the amplitude of the pulse is varied to represent data. The received signal is the sum of the transmit pulse shifted by a multiple of the symbol duration Ts. Baseband signals are typically used for transmission over wires or fiber optic cables.
Step-by-step explanation:
In the question, baseband PAM (Pulse Amplitude Modulation) with a transmit pulse g(t)=sinc(πt/Ts) is mentioned. PAM is a digital modulation technique where the amplitude of the pulse is varied to represent data. The received signal is defined as ∑ A[k]g(t−T−kTs) which is the sum of the transmit pulse shifted by a multiple of the symbol duration Ts.
In this context, baseband refers to the frequency range over which the signal is transmitted, which is typically from 0 Hz to the Nyquist frequency. Baseband signals are often used for transmission over wires or fiber optic cables.
The grade level of this question is college because it involves advanced concepts in digital communication and modulation techniques.