电波科学学报2012，Vol.27Issue(4)：773-779,796,8.
滑动离散傅里叶算法输出稳定性研究
Output stabilization of sliding discrete Fourier transform algorithm
摘要
Abstract
Sliding discrete Fourier transform （sliding DFT） algorithm has disadvan- tage on instability of outputs, which is influenced by the finite register length effects of digital system. Frequency units of sliding DFT are reconstructed by using recursive units of improved Goertzel algorithm, which can provide initial spectrum value and a new accurate spectrum value every N points. Improved sliding DFT al- gorithm can process data continuously and can keep output stabilization for a long time, which becomes increasingly important at real-time consecutive time-frequency spectrum analysis.关键词
改进Goertzel算法/滑动DFT算法/稳定性Key words
improved Goertzel algorithm/slidifig DFT algorithm/stabilization分类
信息技术与安全科学引用本文复制引用
王宏伟..滑动离散傅里叶算法输出稳定性研究[J].电波科学学报,2012,27(4):773-779,796,8.
