| HFC网上行信道突发解调器的一种实现 |
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| 引用本文： | 李睿,张朝阳,唐慧明.HFC网上行信道突发解调器的一种实现[J].电子科技大学学报(社会科学版),2001(4). |
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| 作者姓名： | 李睿 张朝阳 唐慧明 |
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| 作者单位： | 浙江大学信息与电子工程学系!杭州 310027，浙江大学信息与电子工程学系!杭州 310027，浙江大学信息与电子工程学系!杭州 310027 |
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| 摘 要： | 根据CABLE MODEM协议的规定，对比各种已有的解调方式，提出了一种全新的采用差分四相相移键控实现光纤同轴混合网上行信道突发解调的方法。计算机仿真结果证明该方案是可行的，其锁定较快，且抗噪声性能接近于理论值。
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| 关 键 词： | 四相相移键控 HFC网上行信道 仿真 解调 位同步 载波恢复 |
An Implementation of Burst Mode Demodulation for Up-stream Channel of HFC Networks |
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| Li Rui,Zhang Zhaoyang,Tang Huiming.An Implementation of Burst Mode Demodulation for Up-stream Channel of HFC Networks[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2001(4). |
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| Authors: | Li Rui Zhang Zhaoyang Tang Huiming |
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| Abstract: | Based on the definition of cable modem and the comparison of several demodulators, a novel burst mode differential quadrature phase shift keying (DQPSK) demodulator for the up-stream channel of hybrid fiber-coax networks is given. The scheme achieves bit-timing recovery prior to carrier recovery. Simulation results demonstrate that the proposed scheme can greatly reduce the required preamble length and its bit error rate (BER) performance in the AWGN channel is close to the theoretical performance of static DQPSK demodulator. |
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| Keywords: | quadrature phase shift keying hybrid fiber-coax up-stream channel simulation demodulation bit-time recovery carrier recovery |
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