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Given the channel features or objectives below For each part, tell which line codes is are the best choices a The channel frequency response has a null at

Given the channel features or objectives below. For each part, tell which line code(s) is (are) the best choice(s).

a. The channel frequency response has a null at ƒ= 0 Hz.

b. The channel has a passband from 0 to 10 kHz, and it is desired to transmit data through it at 10,000 bps.

c. At least one zero crossing per bit is desired for synchronization purposes.

d. Built in redundancy is desired for error checking purposes.

e. For simplicity of detection, distinct positive pulses are desired for ones and distinct negative pulses are desired for zeros.

f. A discrete spectral line at the bit rate is desired from which to derive a clock at the bit rate.

Jul 31 2020 View more View Less

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