direct sequence system

direct sequence system

[də′rekt ′sē·kwəns ‚sis·təm]
(communications)
A system for generating spread spectrum transmissions by phase-modulating a sine wave pseudorandomly by an unending string of pseudonoise code symbols, each of duration much smaller than a bit.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Therefore, a low cost direct sequence system can spread a signal and easily fill 100 MHz of bandwidth.
When the interference in a given digital data communication application is significant, the process gain and jam margins from direct sequence systems can yield superior bit error rate performance.
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