The power of DSSS systems is largely in the spreading and dispreading of the received signal because it gives rise to a phenomenon known as ______________.
A)channel coding
B)spectral regrowth
C)processing gain
D)frequency-hopping

Question

Quizplus · Accepted Answer

The spreading and dispreading of the received signal in DSSS systems creates a processing gain, which is the ratio of the spread bandwidth to the original signal bandwidth. This allows for increased signal-to-noise ratio and improved performance in noisy environments. Choice A is incorrect as channel coding refers to the use of error-correcting codes to improve transmission reliability. Spectral regrowth, choice B, is a phenomenon in which the spectral density of a signal increases due to nonlinearities in the transmitter or amplifier. Frequency-hopping, choice D, is a technique in which the frequency of a transmitted signal is rapidly changed to avoid interference.

The Power of DSSS Systems Is Largely in the Spreading