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中文摘要：
分析了信道编码在正交频分复用（OFDM）系统中的作用，重点研究了卷积编码原理和具体实现。参考IEEE802．16d标准，结合现有多码速率编码算法，提出了一种新的打孔算法，仿真实验表明该算法降低了系统的误码率；可编程逻辑器件（FP—GA）上的硬件在线调试表明实测结果与算法仿真结果吻合，且在提高可靠性的同时，节省了硬件资源。
英文摘要：
The channel encoding plays a very important part in Orthogonal Frequency Division Multiplexing （OFDM） system, and the principle of con- wdutional coding and its realization are mainly studied in this paper. Referenee to 1EEE802.16d standards, combined with existing multi -code rate en- coding algorithm, a new puncturing algorithm is proposed. Simtdation results show that the system＇ s error rate of the algorithm is reduced. It shows that FPGA hardware online debugging is consistent with the algorithms simulation. The reliability is improved and hardware resources are saved.
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