Abstract
Digital Spectral Analysis of DNA sequence using AR Models have long been proved to be superior to classical Fourier Transform techniques. Here authors have applied a special case of all-pole model using Prony's method to DNA sequence from various Chromosomes for Power Spectral Density (PSD) estimation in order to identify protein-coding regions. A quaternary mapping method comprising real and imaginary values towards nucleotide bases has been employed. The simulation results obtained by Prony's model clearly show the demarcation between coding and non-coding regions of DNA sequence.
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