Search: Fourier transform

7 results

Fluid Mechanics 1

  Linear Wave Propagation

trapezoidal method, waves, Fourier transform

An introduction to studying linear surface waves on an infinite domain. In particular, the problem of finding the time evolution of a small perturbation of the surface of an inviscid and incompressible fluid.

Optics 2

Curve Fitting 1

  Trigonometric Interpolation

discrete fourier transform, interpolation, fft, least squares

Using trigonometric interpolation and the discrete Fourier transform to fit a curve to equally spaced data points.

Waves and Acoustics 1

  Simple Sound Filtering

discrete fourier transform, nyquist-shannon sampling theorem, music, sound filtering, beat

Programming with sounds and using Fourier transforms to filter sound signals.

Basics 1

  Discrete Fourier Transform

fft, dft

Brief introduction to Discrete Fourier Transform and the Fast Fourier Transform.

Waves and Acoustics 1

  Doppler Effect

speed of sound, doppler, discrete fourier transform

Calculating the speed of a passing train by Fourier analysis of the corresponding sound file.