| 基于FPGA的网格编码的设计与实现 |
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| 引用本文： | 李滨滔,李春泉,戈志华.基于FPGA的网格编码的设计与实现[J].科技广场,2007(3):92-94. |
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| 作者姓名： | 李滨滔 李春泉 戈志华 |
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| 作者单位： | 南昌大学信息工程学院,南昌,330031 |
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| 摘 要： | TCM编码调制技术在带限通信系统中使用广泛,TCM通过结合调制与前向纠错编码来增加编码效率,在这种编码方式中,由于使用相同的符号速率和功率,因此,带宽的扩展并不是必须的。由于在卷积编码中引入了冗余位导致了星座图扩展为原来的两倍,因此需要更大的发送功率,但是因为采取了集分割技术的缘故导致总的增益比不编码时的增益要大5db。本文提出了一种基于FPGA上实现2维16状态的编码的设计思想。
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| 关 键 词： | 网格编码 前向纠错 映射 集分割 星座图 FPGA Matlab |
| 文章编号： | 1671-4792-（2007）3-0096-03 |
a Design on How to Implementation TCM Based on FPGA |
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| Li Bintao,Li Chunquan,Ge Zhihua.a Design on How to Implementation TCM Based on FPGA[J].Science Mosaic,2007(3):92-94. |
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| Authors: | Li Bintao Li Chunquan Ge Zhihua |
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| Abstract: | Trellis-coded Modulation (TCM) is used in bandlimited communication systems. TCM efficiency improves coding gain by combining modulation and forward error correction coding in one process. In TCM, the bandwidth expansion is not required because it uses the same symbol rate and power spectrum; the differences are the introduction of a redundancy bit and the use of a constellation with double points. However the coding gain led by the set partitioning method is as four time larger db than the former. This paper introduces a design on how to implementation 2D sixteen states TCM on FPGA. |
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| Keywords: | TCM(Trellis-coded Modulation) ECC(Error-correcting Code) Mapping Set Partitioning Constellation FPGA(Field Programmable Gate Array) Matlab |
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