单词Fourier transform
un.: 〔数〕傅里叶变换
网络: 立叶转换
〔数〕傅里叶变换
It was shown in [23] that the time-frequency pair of orthonormal basses that are related via the Fourier transform is highly incoherent.
文献[23]证明了，通过傅里叶变换相关的规范正交的低沉音的时间-频率对是高度不相干的。
Fourier transform is a way of looking at a time series as a sum of sine waves at different frequencies.
傅里叶变换是一种把它看成不同频率的正弦波的级数和的方式。
Chirplet transform is the general form of Fourier transform, short-time Fourier transform and Wavelet transform.
线调频小波变换是傅里叶变换、短时傅里叶变换和小波变换的一般形式。
Otaining the double Fourier transform answers to the question of transversely isotropic saturated porous half-space.
求解横观各向同性饱和多孔半空间问题的二重傅立叶变换解答。
According to the articles published, the harmonic analysis of electronic power system is usually achieved via Fast Fourier Transform(FFT).
从国内外发表的文献来看，电力系统的谐波分析，通常都是采用快速傅立叶变换（FFT）实现的。
The Fourier transform is an integral expression for a Fourier series applied to an infinitely long signal.
傅里叶变换式是对博里叶级数的一种积分表达式。
Length of Fourier transform is connected with curve resolution. Curve resolution is lower, window length of Fourier transform is narrower.
为截取最强地层响应信号，选取Fourier变换窗函数，窗长与曲线原始分辨率有关，分辨率越低的曲线窗长越大。
The discharge gap voltage is represented in terms of Fourier transform , the equivalent impedance of DBD discharge gap is available.
对放电间隙电压进行了傅立叶分解，并由此求出了放电间隙的等效阻抗。
For a general asymmetric optical system, the Fourier transform conditions of the system are derived by using the ray matrix method.
本文应用光线矩阵方法，分析一般的非对称系统，导出了该系统的傅里叶变换条件；
Fourier transform infrared (FTIR) spectroscopy technology becomes one of the most efficient methods in the study of atmospheric species.
傅里叶变换红外光谱（FTIR）技术已经成为研究微量大气组分的有效方法。