| 一种先进的离散余弦变换快速算法 |
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| 引用本文： | 董立昱,周崇经.一种先进的离散余弦变换快速算法[J].东北大学学报(自然科学版),1989(6). |
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| 作者姓名： | 董立昱 周崇经 |
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| 作者单位： | 东北工学院无线电教研室
(董立昱)，东北工学院无线电教研室(周崇经) |
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| 摘 要： | 推出一种先进的纯实数离散余弦变换的快速算法。借助于流程图和算式详细介绍了该算法的推导过程。与传统的借助于FFT实现的 FCT相比,该算法速度提高一倍以上,存贮空间节约一倍左右,为FCT的硬件实现提供了一条更便利的途径。
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| 关 键 词： | 余弦变换 快速算法 速度 |
An Advanced Fast Algorithm for Discrete Cosine Transform |
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| Dong Liyu,Zhou Chongjing.An Advanced Fast Algorithm for Discrete Cosine Transform[J].Journal of Northeastern University(Natural Science),1989(6). |
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| Authors: | Dong Liyu Zhou Chongjing |
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| Institution: | Dong Liyu;Zhou Chongjing |
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| Abstract: | Develops an advanced fast algorithm for discrete cosine transform arid describes it in detail through flow graphs in connection with formulae derived.Compared with the conventional DCT algorithm which should be implementedby way of FFT,the algorithm developed has advantages of doubling the speedeven faster and saving about half the memory space. Therefore, it has been pro-ved more convenient for the hardware implementation of DCT. |
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| Keywords: | discrete cosine transform(DCF) fast algorithm speed |
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