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View Full Version : Methods: Chapters 12 and 13

  1. performance (speed) of Fast Fourier Transform (FFT) routines
  2. smoothing of data
  3. FFT DIT algorithm
  4. Question on using DFT in image processing
  5. how about DIF
  6. Use of cosine transform in audio compression
  7. four1 output
  8. how to write MESA filter ?
  9. help understaning the mesa example code
  10. Everyone VIEWS, no one ANSWERS ??
  11. Wavelet on a 2D image
  12. spctrm function
  13. FFT error analysis
  14. rlft3 and 2-D image?
  15. convolution
  16. bit shift
  17. FFT magnitude & phase conventions used
  18. How do I normalize correlation results
  19. Frequency Calculation
  20. Problem with fourn
  21. my common-sense DFT, any comments?
  22. four1
  23. Another fourn1 problem
  24. Wavelets
  25. cosine transform
  26. Daubechies Wavelets
  27. D6 D8
  28. could someone explain the array arrangement in rlft3?
  29. Did I use Fast Hartley Transfrom correctly?
  30. Inverting characteristic functions of probability distributions
  31. Can someone please explain the convlv function to me
  32. Help
  33. Fourier transform again
  34. 2d FFT unwrap routine
  35. Four1 problem
  36. NR 13.8 - Lombs Question
  37. Accuracy in 2D FFT
  38. How to make a working DLL for VB6
  39. Routine PERIOD pg 572 NR Ftn 2nd Ed
  40. Search for rlft3.pas, chapter 12.5
  41. Reeeeeally short FFT routines
  42. rlft3 - 2D image processing
  43. Chirp Z Transform
  44. Fast FFT with real input
  45. Problem with program from example book
  46. anybody help out with cepstral coefficients?
  47. fourn
  48. Wavelet Image Compression -- full code?
  49. four1 routine
  50. interpolation with FFT?
  51. 16 point fft implementation
  52. error function
  53. FFT Sine Transform (sinft)
  54. 2-D Convolution of a real function
  55. very simple main program for fourrow_dp.f90 but not working
  56. Phase distribution of FFT(Data) ?
  57. To the people who wrote NR books...
  58. very nice!
  59. Mellin Transformation
  60. producing original curve using coefficients
  61. Power spectrum
  62. four1() code understanding
  63. realft() reverse transform problem.
  64. realfft(): Odd result in comparison with Matlab?
  65. inverse transform for rlft3 not working
  66. recipe to generate tables
  67. FFT code question.
  68. Phase correlation
  69. rlft3d() and f3tensor()/matrix() in 2D with C
  70. Reason why FOUR1 sometimes produces wrong results found
  71. need help implementing rlft3 in my code, please
  72. Volume Convolution with NR fourn
  73. rlft3 output issues
  74. Very BAD routines in your book!!!
  75. Bandpass IIR in sec 12.9, NR 1st ed.
  76. Question about fasper
  77. 1D convolution of real data and real response
  78. psd alternative??
  79. realft input/output data format
  80. using MESA (memcof and evlmem)
  81. What sign was Fourier born under?
  82. four1
  83. convlv: which ans[] to use?
  84. realFT and junk-peaks
  85. Difference between subroutine rlft3(data,speq,nn1,nn2,nn3) and the FFTW
  86. chercher d'un algorithme
  87. psd normalization
  88. l'application de la fft
  89. FFT application to wavepacket propagation
  90. realft() problem
  91. C convlv() function help
  92. Two side FFT spectrum problem !!
  93. integrals
  94. FFT 2D subroutines
  95. vector & free_vector: wrong number of parameters?
  96. Input to realft()
  97. convolution using fft without equivalence
  98. program fft