FOURIER TRANSFORM – MATERIALS ANALYSIS pdf

... 3:27 http://www.ovarianresearch.com/content/3/1/27 Page 3 of 6 RESEA R C H Open Access Analysis of ovarian tumor pathology by Fourier Transform Infrared Spectroscopy Ranjana Mehrotra 1* , Gunjan Tyagi 1 , Deepak ... Fourier- transform infrared microspectroscopy. Clin Cancer Res 2002, 8:2010-2014. 25. Argov S, Ramesh J, Salman A, Sinelnikov I, Goldstein J, Guterman H, Mordechai S: Dia...

Ngày tải lên: 20/06/2014, 07:20

... functionsused by the Fourier transform( a), sine transform( b), and cosine transform (c), are plotted. The first five basis functions are shown in eachcase. (For the Fourier transform, the real and ... stepsanalogous to those leading up to equation (12.3.11), you will find that the Fourier transform is 520 Chapter 12. Fast Fourier Transform Sample page from NUMERICAL RECIPES IN...

Ngày tải lên: 21/01/2014, 18:20

... 1974, The Fast Fourier Transform (Englewood Cliffs, NJ: Prentice-Hall). Swartztrauber, P. N. 1986, Mathematics of Computation , vol. 47, pp. 32 3–3 46. 530 Chapter 12. Fast Fourier Transform Sample ... REFERENCES AND FURTHER READING: Nussbaumer, H.J. 1982, Fast Fourier Transform and Convolution Algorithms (New York: Springer- Verlag). 12.5 Fourier Transforms of Real Data in Tw...

Ngày tải lên: 21/01/2014, 18:20

... whole paper. 2 Simplified Fractional Fourier Transform (FrFT) The FrFT is a generalizatio n of regular Fourier trans- form in that the Fourier transform transforms a signal from time-domain to ... 4(1), 5 7–6 8 (2007). doi:10.1142/S0219878907001162 20. LB Almeida, The fractional Fourier transform and time-frequency representations. IEEE Transactions on Signal Processing 42 (10...

Ngày tải lên: 20/06/2014, 22:20

... decomposed. Chapter 8- The Discrete Fourier Transform 145 Type of Transform Example Signal Fourier Transform Fourier Series Discrete Time Fourier Transform Discrete Fourier Transform signals that are ... term: transform, is extensively used in Digital Signal Processing, such as: Fourier transform, Laplace transform, Z transform, Hilbert transform, Discrete Cosine...

Ngày tải lên: 13/09/2012, 09:49

... four members of the Fourier transform family (Fourier transform, Fourier Series, DFT, and DTFT). Figure 10-1 provides an example of how homogeneity is a property of the Fourier transform. Figure ... properties of the Fourier Transform, how a mathematical change in one domain results in a mathematical change in the other domain. Linearity of the Fourier Transform The Fourie...

Ngày tải lên: 13/09/2012, 09:49

... it is the Fourier transform pair of a very simple waveform, the rectangular pulse. For example, the sinc function is used in spectral analysis, as discussed in Chapter 9. Consider the analysis ... called Fourier transform pairs. Several common pairs are presented in this chapter. Delta Function Pairs For discrete signals, the delta function is a simple waveform, and has an equall...

Ngày tải lên: 13/09/2012, 09:49

... with zeros to make it an Chapter 12- The Fast Fourier Transform 235 TABLE 12-4 The Fast Fourier Transform in BASIC. 1000 'THE FAST FOURIER TRANSFORM 1010 'Upon entry, N% contains the ... the far right column in Fig. 12-3). 225 CHAPTER 12 The Fast Fourier Transform There are several ways to calculate the Discrete Fourier Transform (DFT), such as solving simultaneo...

Ngày tải lên: 13/09/2012, 09:50

... the complex Fourier transform, they are introduced by the real Fourier transform. In the world of mathematics, the complex Fourier transform is a greater truth than the real Fourier transform. This ... types of Fourier transforms: the Discrete Fourier Transform (discrete, periodic), the Discrete Time Fourier Transform (discrete, aperiodic), the Fourier Series (contin...

Ngày tải lên: 13/09/2012, 10:20

... Trong miền tần số: phương pháp Fourier Transform. - Trong miền thời gian và tần số: STFT( Short Time Fourier Transform) . 2.4.1. Phương pháp Fourier: 2.4.1.1. Biến đổi Fourier: Cho một hàm f(t) ... chuỗi Fourier của F(t) () () ∑ ∞ −∞= = k tjk ekFtf 0 ω (2.18) với () () ∫ − − = 2 2 0 1 T T tjk dtetf T kF ω • Phân tích liên tục: PDF created with pdfFactory Pro trial ve...

Ngày tải lên: 01/04/2013, 16:14