| Autors: Mironov, R. P., Kountchev, R. K. Title: Complex Hadamard transform of digital signals: Properties and applications Keywords: digital signal processing, DSP, complex Hadamard transform, Abstract: In this paper, we present a class of Complex Hadamard matrices, which are constructed on the base of well–known real Hadamard construction algorithm. The general properties of the developed matrices are discussed and algorithms for reordering and fast calculation of spectral coefficients are given. On the basis of theoretical investigations two applications of complex Hadamard transformation in the area of multidimensional digital signal processing are given. A new method for audio watermarking in the phase spectrum of audio signals and new method for spectrum optimisation of truncated orthogonal transforms are presented. The obtained result lead to the conclusion, that the elaborated complex Hadamard transform can be used efficiently in digital signal processing for spectral analysis, pattern recognition, digital watermarking, transformation, coding and transmission of one–dimensional and two–dimensional signals. References Issue
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Цитирания (Citation/s):
1. Joarder Jafor Sadique, Saifur Rahman Sabuj, Shaikh Enayet Ullah, Md. Akbar Hossain, Raad Raad, Md. Rabiul Islam, Abbas Z. Kouzani, M. A. Parvez Mahmud, Analytical Framework of CP-Free Multiuser OFDM System for Coordinated Multi-Point at mmWave, Appl. Sci. 2021, 11(16), 7605; MDPI, Basel, Switzerland. IF: 3.576 - 2021 - в издания, индексирани в Scopus и/или Web of Science
2. Kountcheva R.A., Jain L.C., Exploring the Optimizing Tools for Digital Watermarking of Medical Visual Information Using DL, 2026, Smart Innovation Systems and Technologies, issue 0, vol. 478 SIST, pp. 23-44, DOI 10.1007/978-3-032-20272-7_2, issn 21903018, eissn 21903026 - 2026 - в издания, индексирани в Scopus
Вид: статия в списание, публикация в реферирано издание, индексирана в Scopus
