Direct-sequence spread spectrum: Difference between revisions

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In [[telecommunication]]s, the term '''direct-sequence spread spectrum''' hasis thea following[[modulation]] meanings:technique where the

transmitted signal takes up more [[bandwidth]] than the information signal that is being modulated, which

is the reason that it is called spread spectrum. DSSS has the following features:

# A [[system]] (a) for generating spread-spectrum transmissions by [[phase]]-modulating a [[sine wave]] [[pseudorandom]]ly with a continuous [[string]] of [[pseudonoise]] [[code]] symbols, each of duration much smaller than a [[bit]] and (b) that may be time-gated, where the transmitter is keyed periodically or randomly within a specified [[time]] interval.