摘要
离散傅立叶变换在数字信号处理,特别是地震信号处理中有着重要的应用。当在程序中对有限时序离散信号进行变换时,有别于连续信号的傅立叶变换,序列离散性和有限长度引起的独有特性应得到足够的重视,否则会在应用中产生奇特的效果,从而无法正确地进行信号处理,这里分析FFT和DFT的特性,并给出实际应用FFT时的几点建议和注意事项。
It is vital for DFT in digital signal processs,especially in analysis of seismic data.versus CFT and DFT, beause of some attributes as finit length and discrete trait, much attention shoud be payed for FFT in programming as irregular use will offset abnormal effects,characteristics of FFt and DFT are analyzed here and some suggestions and cautions are put forward for practical applictation.
出处
《新疆石油天然气》
CAS
2011年第3期15-18,110-111,共4页
Xinjiang Oil & Gas
