The spread spectrum technique that involves multiplying the original data signal with a pseudo-random noise spreading code is known as Direct Sequence Spread Spectrum (DSSS). In DSSS, the data signal is combined with a higher data-rate bit sequence, also known as a chipping code, which divides the data according to a spreading ratio. The chipping code is a pseudo-random code sequence that spreads the signal across a wider bandwidth. This process allows the signal to be more resistant to interference and eavesdropping.
References: The information is consistent with the principles of spread spectrum techniques as outlined in various educational resources on the subject, including academic publications and industry standards related to network security and wireless communications12.
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