Determine the spreading of a DSSS signal given the following parameters: Modulation bit rate: 56 kbps Chip rate: 280 kbps
A) spreading = 1.2
B) spreading = 0.2
C) spreading = 1.0
D) spreading = 5.0

Question

Quizplus · Accepted Answer

The spreading factor (or processing gain) of a Direct Sequence Spread Spectrum (DSSS) signal is calculated by dividing the chip rate by the modulation bit rate. Given a chip rate of 280 kbps and a modulation bit rate of 56 kbps, the spreading factor is 280 kbps / 56 kbps = 5. This means the correct answer is D, spreading = 5.0.

Determine the Spreading of a DSSS Signal Given the Following