| 一种新的解映射算法的推导和实现 |
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| 引用本文： | 刘鹏,李湛,卢朝阳,宫丰奎. 一种新的解映射算法的推导和实现[J]. 电路与系统学报, 2006, 11(5): 124-127 |
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| 作者姓名： | 刘鹏 李湛 卢朝阳 宫丰奎 |
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| 作者单位： | 1. 西安电子科技大学,ISN国家重点实验室,陕西,西安,710071
2. 复旦大学,数学系,上海,200433 |
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| 摘 要： | 本文在一种16QAM,64QAM,256QAM的解映射算法启发下,提出了新的适合32QAM和128QAM的解映射算法,并在此基础上,给出了适合DVB-C接收机的多QAM解映射结构.然后在FPGA中实现和仿真.最后通过比较说明,相对于传统的查找表解映射方法,提出的解映射算法可以明显减少资源使用率.
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| 关 键 词： | 数字有线电视广播 QAM解调 解映射 FPGA实现 |
| 文章编号： | 1007-0249（2006）05-0124-04 |
| 收稿时间： | 2004-03-15 |
| 修稿时间： | 2004-09-01 |
Derivation and implementation of a new de-mapping algorithm |
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| LIU Peng,LI Zhan,LU Zhao-yang,GONG Feng-kui. Derivation and implementation of a new de-mapping algorithm[J]. Journal of Circuits and Systems, 2006, 11(5): 124-127 |
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| Authors: | LIU Peng LI Zhan LU Zhao-yang GONG Feng-kui |
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| Abstract: | A new de-mapping algorithm for 32QAM and 128QAM is proposed on the basis of a method for 16QAM, 64QAM and 256QAM. Then a structure suitable for de-mapping of multi-QAM is presented. Then the circuit is realized and simulated in FPGA. Finally, comparison results show that the proposed algorithm uses much less resource than the conventional method. |
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| Keywords: | DVB-C Quadrature Amplitude Modulation de-mapping FPGA implementation |
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