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61. An automatic measuring system for the relative spectral response of IR detectors by using Fourier Transform Infrared (FTIR)Spectrometer bas been developed.

62. Then, based on the actual circuit of TCR branch, the simplified formula for calculating the fundamental current is showed by Fourier decomposition.

63. Methods: The IR of Radix Dipsaci decocting pieces and its confusable varieties Arctium lappa L. was obtained by Fourier Transform Infrared Spectrum and OMNI-sampler directly.

64. In this paper the problem of beams on tensionless winkler foundation is solved by Fourier series and method of successive substitution.

65. The numerical reconstruction of digital lensless Fourier transform holography for microstructures measurement is experimentally shown.

66. Based on a simplified engine dynamic model, the cylinder pressure torque waveform can be achieved through Discrete Fourier Transform and Inverse Discrete Fourier Transform.

67. The spatial Fourier decomposition method is a new method for the SAR imaging.

68. A shift sampling theory established by author (1997a) is a generalization of Fourier transform computation theory.

69. This paper analyzes the spectral characteristic of the synthesized waveform by use of the Fourier Series, and discusses the spurious spectrum of the phase truncation errors.

70. The fractional Fourier transform of partially coherent flat-topped beams is also studied.

71. Fourier transform infrared spectroscopy (FT-IR) and Differential Scanning Calorimeter (DSC) were used on studying the thermolysis of 4,4'-diaminocarbamate-2,2'-diphenyipropane (DCB).

72. Based on Fourier optical theory, PSF(Point Spread Function)and OTF(Optical Transfer Function)are introduced. Then the mechanism why digital image is focused in optics imaging system is also analyzed.

73. On the basis of analyzing shape features of tomatoes , leaves and branches , we extract features of roundness , slightness , concavity degree and denseness depending on Fourier description .

74. In this paper we zoom some regions of FFT spectrum by the Fourier transform, get the precise value of some main frequency, and thus greatly improve the frequency discrimination of FFT spectrum.

75. Joseph Fourier " , " Mathematical Analysis is as extensive as nature herself. " , "

76. In Linear system, Fourier Transform (FT), Fourier Series (FST), Fourier Z Transform (FZT) and Discrete Fourier Transform (DFT) are used to analyze and process signals.

77. The DSP also deal with the display data transmitted from primary CPU, such as the vector display of channel signal, Fast Fourier Transform (FFT) applied to it and so on.

78. The global Fourier transform can also be obtained by switching(up to sign) the multiplication by a coordinate of the affine line and the differential operator with respect to this coordinate.

79. One - dimensional vector of discrete short - time Fourier transform function.

80. At last,[www.Sentencedict.com] the field is transformed back to space domain by inverse Fourier transform.

81. Nonlinear Schrodinger equation is a problem, use split - step Fourier method for solving nonlinear Schr ? dinger equation.

82. The Fourier frequency spectral analysis of voltage has shown that the high frequency dielectric dissipation in motor winding can be ignored also.

83. Convolution of windowing function is traditionally used to explain the Discrete Fourier Transform ( DFT ) errors.

84. Besides, the calculation error of fundamental wave between the SWI method and the whole- wave Fourier algorithm is negligible, so the SWI method is more practical because of the short time of windows.

85. The HVS function, HVS function is inversely Fourier transformed in frequency domain, and the method is realized by calculating some value of the function in spacial domain as convolve nucleus.

86. This paper presents computation of the signal's amplitude spectrum and phase spectrum the Fourier transform.

87. A new optical encryption technique based on double random phase computer-generated hologram of asymmetry fractional Fourier transform is presented.

88. Instanced by dead-band PWM, this paper proposes that its explicit modulated wave is attained and its mathematics model in frequency domain is derived by dual Fourier transforms.

89. The spectrum characteristics of the phase truncation error and amplitude quantization error are analyzed by the method of Fourier series.

90. This paper introduces the Fast Fourier Transform ( FFT ) implementation in fixed - point DSP TMS 320 C 5402.