| DRM系统中OFDM模块的高效实现 |
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| 引用本文： | 何苗,董在望,徐淑正. DRM系统中OFDM模块的高效实现[J]. 电子科技大学学报(自然科学版), 2007, 36(5): 903-906 |
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| 作者姓名： | 何苗 董在望 徐淑正 |
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| 作者单位： | 清华大学电子工程系,北京,海淀区,100084;清华大学电子工程系,北京,海淀区,100084;清华大学电子工程系,北京,海淀区,100084 |
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| 摘 要： | 结合世界性数字广播(Digital Radio Mondiale,DRM)系统具有多种鲁棒性模式和带宽占用模式的特点,设计了适用于DRM系统的快速傅里叶变换算法。与其他快速傅里叶变换算法相比较,这种通用长度N的同址、顺序素因子算法点数选取灵活,运算精度高,可以实现同址、顺序运算,因此其存储量和数据传递次数少,运算量小,运算速度快,且程序结构规整,利于软、硬件实现。该算法也可用于其他采用正交频分复用调制技术的系统。
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| 关 键 词： | 世界性数字广播 快速傅里叶变换 正交频分复用 素因子算法 |
| 收稿时间： | 2006-04-28 |
| 修稿时间： | 2006-04-28 |
High-Efficient Implementation of the OFDM Module for DRM Systems |
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| HE Miao,DONG Zai-wang,XU Shu-zheng. High-Efficient Implementation of the OFDM Module for DRM Systems[J]. Journal of University of Electronic Science and Technology of China, 2007, 36(5): 903-906 |
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| Authors: | HE Miao DONG Zai-wang XU Shu-zheng |
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| Affiliation: | 1.Department of Electronic Engineering,Tsinghua University Haidian Beijing 100084 |
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| Abstract: | Combining the robustness modes and bandwidth occupation modes of Digital Radio Mondiale (DRM) systems, a method of computing Fast Fourier Transform (FFT) algorithm is presented for DRM systems. In comparison with other FFTs. This algorithm produces the in-place, in-order algorithm for variable transform sizes with high operational precision. Therefore it saves storage space, operation and run time. In addition, the program structure of this algorithm is very regular, thus it can be easily achieved by software and hardware. This algorithm is applicable to Orthogonal Frequency Division Multiplexing (OFDM) modules of other systems. |
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| Keywords: | digital radio moodiale fast Fourier transform orthogonal frequency division multiplexing prime factor algorithm |
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