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smy1982
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8Â¥2014-05-22 10:52:54
smy1982
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<Computational Fourier Optics a Matlab tutorial> ÐèÒªÎÒ¿ÉÒÔ´«¸øÄã¡£ Contents Preface .................................................................................................. xiii Chapter 1 Analytic Fourier Theory Review .......................................... 1 1.1 A Little History and Purpose .................................................................... 1 1.2 The Realm of Computational Fourier Optics ............................................ 2 1.3 Fourier Transform Definitions and Existence ........................................... 3 1.4 Theorems and Separability ....................................................................... 3 1.5 Basic Functions and Transforms ............................................................... 5 1.6 Linear and Space-Invariant Systems ......................................................... 7 1.7 Exercises ................................................................................................. 10 1.8 References ............................................................................................... 12 Chapter 2 Sampled Functions and the Discrete Fourier Transform 13 2.1 Sampling and the Shannon¨CNyquist Sampling Theorem ....................... 13 2.2 Effective Bandwidth ............................................................................... 15 2.3 Discrete Fourier Transform from the Continuous Transform ................. 18 2.4 Coordinates, Indexing, Centering, and Shifting ...................................... 20 2.5 Periodic Extension .................................................................................. 21 2.6 Periodic Convolution .............................................................................. 24 2.7 Exercises ................................................................................................. 26 2.8 References ............................................................................................... 27 Chapter 3 MATLAB Programming of Functions, Vectors, Arrays, and Fourier Transforms ................................................................... 29 3.1 Defining Functions ................................................................................. 29 3.2 Creating Vectors ..................................................................................... 32 3.3 Shift for FFT ........................................................................................... 34 3.4 Computing the FFT and Displaying Results ........................................... 36 3.5 Comparison with Analytic Results ......................................................... 38 3.6 Convolution Example ............................................................................. 39 3.7 Two Dimensions ..................................................................................... 41 3.8 Miscellaneous Hints ................................................................................ 43 3.9 Exercises ................................................................................................. 45 |

2Â¥2014-05-21 15:55:30
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3Â¥2014-05-21 16:00:09
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4Â¥2014-05-22 00:39:34













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