By using the fast Fourier transform and optimized filter, the impact of image noise has been reduced, so we can estimate the correlation peak fast and accurate.
通过采取快速傅立叶变换以及优化滤波减弱了图像噪声对相关波峰的影响，能快速、准确、实时的对相关点进行定位。
Objective To study postmortem degradation in rats skeletal muscle with fourier transform infrared spectroscopy (FTIR) and explore a new method to estimate postmortem interval (PMI).
目的应用傅立叶变换红外光谱（FTIR）分析大鼠死后骨骼肌随死亡时间推移的化学降解过程，为死亡时间推断提供新的研究方法。
The direct DFT based channel estimation method uses comb-type pilot symbol and discrete Fourier transform (DFT) to estimate the channel.
有一种直接基于DFT的信道估计方法利用均匀梳状分布的导频符号和离散傅立叶变换（DFT）完成信道估计。
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