Development and realization of a novel type of high-speed windowed complex FFT processor
文献类型：期刊论文
| 作者 | Yu, Xiufen; Xu, Ke; Tang, Yueying; Liu, Peng |
| 刊名 | OPTIK
 |
| 出版日期 | 2015 |
| 卷号 | 126期号:14页码:1381-1384 |
| 关键词 | Fast Fourier transform (FFT) Digital signal processing (DSP) C6701 Decimation in time (DIT) |
| ISSN号 | 0030-4026 |
| 通讯作者 | Yu, XF (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, Beijing 100190, Peoples R China. |
| 英文摘要 | Fast Fourier transform (FFT) is a key algorithm for the real-time tracking and processing of the space-borne ocean radar altimeter. In order to put the complex data into three operations in sequence as multiplying the window, performing FFT, and computing module-square, and also meeting the requirements of highspeed digital signal processing, a novel scheme for implementing FFT with digital signal processing (DSP) C6701 is proposed in this paper. Firstly, Radix-4 algorithm of decimation in time (DIT) is adopted. Then, the improved bit-reverse algorithm is utilized for decreasing the calculation quantum. Pipeline and paralleled pattern are also considered conjointly. Based on these improvements, real-time and precision are all ensured, and the balance of calculation, communication and storage is also well weighted. Finally, a novel approach of flash programming by gel file and second boot loader is adopted, and by using this method, the format conversion of COFF file to hex file is not needed. Compared with MATLAB 6.5, the simulation and system application results all demonstrate the feasibility and effectiveness of this proposed scheme. Furthermore, the design can not only helps following real-time tracking on echo signal of Chinese national HY-2 satellite altimeter, but also provides beneficial engineering experience for FFT implementation in the other embedded systems of DSP. (C) 2015 Elsevier GmbH. All rights reserved. |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| 源URL | [http://ir.nssc.ac.cn/handle/122/4657]  |
| 专题 | 国家空间科学中心_微波遥感部 |
| 推荐引用方式 GB/T 7714 | Yu, Xiufen,Xu, Ke,Tang, Yueying,et al. Development and realization of a novel type of high-speed windowed complex FFT processor[J]. OPTIK,2015,126(14):1381-1384. |
| APA | Yu, Xiufen,Xu, Ke,Tang, Yueying,&Liu, Peng.(2015).Development and realization of a novel type of high-speed windowed complex FFT processor.OPTIK,126(14),1381-1384. |
| MLA | Yu, Xiufen,et al."Development and realization of a novel type of high-speed windowed complex FFT processor".OPTIK 126.14(2015):1381-1384. |
入库方式： OAI收割
来源：国家空间科学中心
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