That s part of what makes Fourier wonderful. Nonetheless, for some signal-processing applications, banded matrices could prove more efficient than the Fourier transform.
那是傅里叶变换美妙的部分，但对于某些信号处理应用来说，带状矩阵可以比傅里叶变换更加高效。
Conventional Fourier transform can 't localize in time field, so it can' t inspect signal 's break time accurately.
传统的傅里叶分析由于在时域不能局部化，难以精确检测到信号发生突变的时间。
Meanwhile, data of complete time domain waveform is needed in order to calculate accurate S-parameters of frequency domain via fast Fourier transform (FFT).
而要通过快速傅立叶变换(FFT)获得准确的频域参数，又必须得到完整的时域波形数据。
The resonance equation of the sampled fiber Bragg gratings is derived through the Fourier′s transform and the coupled-mode theory, which determine the wavelengths of the resonance peaks.
利用傅里叶变换和耦合模理论得到了取样布拉格光纤光栅的谐振方程，确定了其多谐振峰的位置。
RS encoder in DVB-S and some classical decoding algorithms are introduced, then some Fast Fourier Transform (FFT) algorithms in finite domain are presented.
本文介绍了DVB - S中RS码的编码及常用的译码算法，然后又介绍了几种有限域中快速傅里叶变换(FFT)算法。
S-transform has muti-resolution overcoming single resolution of short-time Fourier transform. Otherwise, S-transform contains phase factor which wavelet transform has not.
变换具有多种分辩率，克服了短时窗傅立叶变换固定分辩率的不足：另外，S -变换中含有相位因子，这是小波变换所不具备的特性。
S-transform has muti-resolution overcoming single resolution of short-time Fourier transform. Otherwise, S-transform contains phase factor which wavelet transform has not.
变换具有多种分辩率，克服了短时窗傅立叶变换固定分辩率的不足：另外，S -变换中含有相位因子，这是小波变换所不具备的特性。
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