DISCRETE FOURIER TRANSFORM
\dɪskɹˈiːt fˈɔːɹɪə tɹansfˈɔːm], \dɪskɹˈiːt fˈɔːɹɪə tɹansfˈɔːm], \d_ɪ_s_k_ɹ_ˈiː_t f_ˈɔː_ɹ_ɪ__ə t_ɹ_a_n_s_f_ˈɔː_m]\
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(DFT) A Fourier transform, specialized to thecase where the abscissas are integers.The DFT is central to many kinds of signal processing,including the analysis and compression of video and soundinformation.A common implementation of the DFT is the Fast FourierTransform (FFT).See also discrete cosine transform.
By Denis Howe
Word of the day
Proto Oncogene Proteins c erbB 2
- cell surface protein-tyrosine kinase that is found to be overexpressed in significant number adenocarcinomas. It has extensive homology can heterodimerize EGF EPIDERMAL GROWTH FACTOR), 3 receptor (RECEPTOR, 3) and the 4 receptor. Activation of erbB-2 receptor occurs during heterodimer formation with a ligand-bound erbB family members. EC 2.7.11.-.