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Direct system allows detection of signals whose psd level is

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Direct system allows detection of signals whose psd level is

(a) Below noise level

(b) Above noise level

(c) All of the mentioned

(d) None of the mentioned

I got this question during an interview for a job.

My query is from Stream Encryption and Commercial Applications in division Spread Spectrum Techniques of Digital Communications

1 Answer

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Best answer
The correct option is (a) Below noise level

Explanation: Direct sequence spread spectrum techniques allow for the detection of signals whose psd is below noise level.

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