Fourier transform造句
91. This article analyse the physics signification of Fourier transform by Hugens principle and Fraunhofer diffraction.
92. Through making the inverse Fourier transform to test light source's interferogram, the authors obtained the spectrum of test source.
93. Because it is too complex to actualize fast fourier transform algorithm with assembly lan- guage in DSP device and the currency of assembly language is too bad, the repeat arithmetic is intro- duced.
94. Secondly, a DSTFT(Discrete Short Time Fourier Transform )-based demodulation method for the 2FSK signal is studied and algorithms for symbol synchronization and symbol decision are analysed.
95. In order to improve the operation tempo of Hilbert transform, this paper recomposed the primary operation method on the basis of FFT (Fast Fourier Transform Algorithm).
96. A new type of holographic sight based on lensless Fourier transform was investigated.
97. This project utilizes Discrete Fourier Transform ( DFT ) to implement the analysis of syntonic wave. In DFT , the use of revised checking table saves interior resource of FPGA.
98. A method for testing meonochromatic focal length of spherical lens using joint Fourier transform spectrum interference technique is given in this paper.
99. Under irradiation, photoreaction occurring between adjacent layers was confirmed by UV Vis and Fourier transform infrared(FTIR) spectra, which covalently attached DNA to DAR in the multilayer.
99. Wish you will loveand make progress everyday!
100. Fourier transform infrared spectroscopy (FTIR) was applied to the study of normal and malignant tissues of human myelocytic leukemia (HL-60) xenografted in nude mice.
101. Convolutional differentiator (CD) is obtained by inverse Fourier transform of bandlimited Fourier spectra of partial derivative operator. CD is symmetric or antisymmetric and decays rapidly.
102. Such numerical solution is iterated for all the waves with different frequencies, and all the numerical solutions are transformed into the light fields in the time domain by inverse Fourier transform.
103. With the modification of the reconstruction algorithm, discrete Fourier transform is used to speed up the reconstruction and 3D atomic arrangement is obtained by utilizing the idea of CT.
104. To reconstruct magnetic resonance image with incomplete sampled data is an ill-posed problem to reconstruct the initial signal from the partial data of Fourier transform in nature.
105. After modulation rate estimated roughly using the signal with its delay version production and Newton's iterative method, signals are filtered and separated in the Fractional Fourier Transform domain.
106. The fractional Fourier transform contains the spatial information and the spatial-frequency information simultaneously. The fractional correlation can be used to optical pattern recognition too.
107. Secondly, the eyepiece and the Fourier transform lens are designed to minimize the secondary color by the ways of changing glass.
108. In Linear system, Fourier Transform(FT), Fourier Series(FST), Fourier Z Transform(FZT)and Discrete Fourier Transform(DFT)are used to analyzing and processing signals?
109. Fast Fourier Transform Algorithm is used to solve the wave equation and numerical calculation is made on the directional force seismic source.
110. A number of numerical examples are given and the results are compared with ones obtained from inverse Fourier transform(IDFT).
111. Fourier transform processing darken the overall image, lost some outline information, some but not all indicators meet the requirement, the method could be improved.
112. Taking account of the positioning error, the formulas for determining fraunhofer diffraction, Fourier transform and its physical focal depth region are obtained.
113. Implementing Fourier Transform to solve the acoustic pressure correction equation in the frequency domain can avoid cockamamie retarded time calculation.
114. Infrared spectra of Papaver somniferum L. and Papaver rhoeas are obtained directly, quickly and accurately by Fourier transform infrared spectroscopy (FTIR) with OMNI sampler.
115. A Surface EMG signal identification method based on short time fourier transform is presented in this paper.
116. The nonlinear problem of optical path difference (OPD) of rotating Fourier transform spectrometer universally exists, produced by the rotation of rotating mirror.
117. In the present paper, Fourier transform infrared spectroscopy(FTIR) was used to determine unzymic and zymic Pu'er tea of different grade produced in Simao, Yunan Province.
118. And then analysis of the light intensity is given by using the Fourier transform which is based on the homogeneous coherence function.
119. For synthetic aperture digital lensless Fourier transform hologram, a screen-division reconstruction method is proposed based on theoretical analysis.
120. The Fourier transform characteristics of off-axis hololens was discussed, which was made by using a dot light source and an inclined parallel light.
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