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。
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.
出处
《电路与系统学报》
CSCD
北大核心
2006年第5期124-127,共4页
Journal of Circuits and Systems
