离散快速傅里叶变换算法在频谱分析中得到了广泛的应用,这种算法得到的计算结果是在整个频段上的频谱信息。
Discrete fast Fourier transform (FFT) has been widely applied to signal spectral analysis and can figure out the entire bandwidth spectrum of a signal.
基于FFT的倍频程CP B谱实现算法中,由于FFT变换时频谱泄漏的影响,导致倍频程CP B谱许多频段出现较大的计算误差。
In the FFT based algorithm for octave CPB spectrum, the frequency leakage causes big calculation errors in each frequency band.
对不同变换视频中具有相同时间差的匹配图像对进行分组统计,修正了候选的匹配视频段的相似度,得到最优的匹配结果。
Group the matching frames by the difference of frames. Then the candidate matching video segments are refined, which aims to get the optimal results.
应用推荐