Novel approach to power spectrum estimation of DNA sequence by Prony's method

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.