| 改进QAM调制技术在电力通信中的应用研究 |
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| 引用本文： | 张在玲,韩富春,朱永利,靳春光. 改进QAM调制技术在电力通信中的应用研究[J]. 低压电器, 2004, 0(1): 40-43 |
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| 作者姓名： | 张在玲 韩富春 朱永利 靳春光 |
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| 作者单位： | 1. 华北电力大学,河北,保定,071003
2. 太原理工大学,山西,太原,030024 |
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| 摘 要： | 论述了电力通信中QAM调制技术及其不足,提出了改进QAM调制下的编、译码结构及译码算法.解决了宽带利用率和传输速率之间的矛盾,提高了抗干扰性和纠错能力,在电力线通信中具有较好的应用前景.
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| 关 键 词： | 电力线通信 Viterbi译码 |
| 文章编号： | 1001-5531(2004)01-0040-04 |
| 修稿时间： | 2003-10-27 |
Research of Improved QAM Techniques Application in PLC System |
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| ZHANG Zai-lin,HAN Fu-chun,ZU Yong-li,JIN Chun-guang NorthChina Eleclrical Power University,Baoding ,China Taiyuan University of Technology,Taiyuan ,China. Research of Improved QAM Techniques Application in PLC System[J]. Low Voltage Apparatus, 2004, 0(1): 40-43 |
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| Authors: | ZHANG Zai-lin HAN Fu-chun ZU Yong-li JIN Chun-guang NorthChina Eleclrical Power University Baoding China Taiyuan University of Technology Taiyuan China |
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| Affiliation: | ZHANG Zai-lin,HAN Fu-chun,ZU Yong-li,JIN Chun-guang NorthChina Eleclrical Power University,Baoding 071003,China Taiyuan University of Technology,Taiyuan 030024,China |
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| Abstract: | In this paper, the QAM modulation techniques and its disadvantages were discussed, and, the struc-tures of the coder and the decoder were given and presented, the corresponding decoding algorithm was presented.The proposed strcture and algorithm can Solve the conflict between the bandwidth utilization and transmission speed.Moreover, Viterbi decoding technqiues are adopted to improve the capacity of interference rejection and correctness.Therefore, the improved QAM techniqies show good prospect in power-line communication system. |
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| Keywords: | QAM |
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