Discret Hartley Transform is a unitary transform although its proof is hard to find in the Web. This short note explains that the Discrete Hartley Transform is an involution, which implies that this transform is unitary indeed.
Acta Acustica united with Acustica, published in collaboration with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics.
The journal reports on original scientific research in acoustics and on engineering applications. The journal considers review papers, scientific papers, technical and applied papers, short communications, letters to the editor, and fast track articles. From time to time, special issues and review articles are also published. For book reviews or doctoral thesis abstracts, please contact the EAA.
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