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单词
direct sequence system
释义
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.
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更新时间:2026/6/2 7:00:26