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DSSS system spreads the baseband signal by ________ the baseband pulses with a pseudo noise sequence.

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DSSS system spreads the baseband signal by ________ the baseband pulses with a pseudo noise sequence.

(a) Adding

(b) Subtracting

(c) Multiplying

(d) Dividing

The question was asked in an interview for job.

The question is from Spread Spectrum Modulation Techniques in portion Modulation Techniques for Mobile Radio of Wireless/Mobile

1 Answer

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Correct option is (c) Multiplying

For explanation I would say: A direct sequence spread spectrum (DS-SS) system spreads the baseband data by directly multiplying the baseband data pulses with a pseudo noise sequence. And the pseudo noise sequence is produced by a pseudo noise code generator.

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