PPT-Lecture 14 Outline : Discrete Fourier Series and Transforms

Announcements HW 4 posted due Tues May 8 at 430pm No late HWs as solutions will be available immediately Midterm details on next page HW 5 will be posted Fri May 11 due . 41 No 1 pp 135147 The Discrete Cosine Transform Gilbert Strang Abstract Each discrete cosine transform DCT uses real basis vectors whose components are cosines In the DCT4 for example the th component of is cos These basis vectors are orthogonal a 5.1 Discrete-time Fourier Transform . Representation for discrete-time signals. Chapters 3, 4, 5. Chap. 3 . Periodic. Fourier Series. Chap. 4 . Aperiodic . Fourier Transform . Chap. 5 . Aperiodic . Raymond Flood. Gresham Professor of Geometry. Joseph Fourier (1768–1830). Fourier’s life. Heat Conduction. Fourier’s series. Tide prediction. Magnetic compass. Transatlantic cable. Conclusion. Overview. Dr. Feng Gu. Way to study a system. . Cited from Simulation, Modeling & Analysis (3/e) by Law and . Kelton. , 2000, p. 4, Figure 1.1. Model taxonomy. Modeling formalisms and their simulators . Discrete time model and their simulators . 5.1 Discrete-time Fourier Transform . Representation for discrete-time signals. Chapters 3, 4, 5. Chap. 3 . Periodic. Fourier Series. Chap. 4 . Aperiodic . Fourier Transform . Chap. 5 . Aperiodic . Periodic Signals. 3.1 Exponential/Sinusoidal Signals as . Building Blocks for Many Signals. Time/Frequency Domain Basis Sets. Time . Domain. Frequency Domain.  .  .  .  .  . .  . .  .  .  . John Dickey. University of Tasmania. Including slides from . Bob Watson. Synthesis Imaging School -- Narrabri, Sept. 2014. Outline. One dimensional functions. Fourier Series equations and examples. Fourier Transform examples and principles. Continues Fourier Transform - 2D. Fourier Properties. Convolution . Theorem. Image Processing. Fourier Transform 2D. The 2D Discrete Fourier Transform. For an image. f(x,y) x=0..N-1, y=0..M-1, . there are two-indices basis functions. 4.1 DFT . . In practice the Fourier components of data are obtained by digital computation rather than by . analog. processing. . The . analog. values have to be sampled at regular intervals and the sample values are converted to a digital binary representation by using ADC. . Junlin. . Hou. Huangyan. Pan. Yifan. Li. Jie. Liu. Mathematics and Music. The explanation of Fourier analysis in musicology. The application of the theory. Summary. contents. Mathermatics and Music. Fourier Transform Notation. For periodic signal. Fourier Transform can be used for BOTH time and frequency domains. For non-periodic signal. FFT for . infinite. period. Example: FFT for . infinite. Systems. Dr. Babul Islam. Dept. of Applied Physics and Electronic Engineering. University of Rajshahi. 1. Outline . Response of LTI system in time domain. Properties of LTI systems. Fourier analysis of signals. 04/07/1772-10/10/1837. Charles Fourier: Life . Born in Besancon, France. Died in Paris. Parents: Charles Fourier & Marie . Muguet. What is . Fourierism. ? . Governing Philosophy:. The Phalanx (Phalanges). Department of Biological Sciences. National University of Singapore. http://. www.cs.ucdavis.edu. /~. koehl. /Teaching/BL5229. koehl. @. cs.ucdavis.edu. Fourier analysis: the dial tone phone. We use Fourier analysis everyday…without knowing it! A dial tone.