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Analog and Digital Communication_2025-26
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What is the primary purpose of the Cyclic Prefix (CP) in an OFDM system?
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If you modify a line code to use a RZ (Return-to-Zero) pulse shape instead of NRZ, how does the first null bandwidth of the PSD change?
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In a 16-QAM constellation, how many distinct amplitude levels (magnitudes from the origin) exist in a standard square grid?
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Minimum Shift Keying (MSK) is often described as a special form of Continuous Phase Frequency Shift Keying (CPFSK). What is its modulation index h?
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