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引用次数: 0

摘要

提出了一种用于时分多址(TDMA)模式下高速数字(QPSK)通信的调制解调器结构,克服了码间干扰和每次TDMA突发的捕获问题。设计的第一部分涉及中频自适应均衡器的检查,以补偿通道失真。设计的第二部分包括对传统载波和时钟恢复网络的重新检查,以及用(560 MHz)同步振荡器取代它们的建议。
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A new synchronization technique for high speed modems
A modem structure for high speed digital (QPSK) communications in the time division multiple access (TDMA) mode is presented that overcomes the problems of intersymbol interference and acquisition of each TDMA burst. The first part of the design involves the examination of an IF adaptive equalizer to compensate for channel distortion. The second part of the design involves a reexamination of traditional carrier and clock recovery networks and the proposal for their replacement by (560 MHz) synchronous oscillators.
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