This article presents some comments on the article recently published by Prazenica and Kurdila under the title “Volterra Kernel Identification Using Triangular Wavelets”. First some common misconceptions in the literature in using wavelets for modeling and identifications are addressed. Then, misconceptions and demonstrational errors regarding the definitions and applications of Haar wavelets and Haar scaling functions are highlighted within the article by Prazenica and Kurdila, and their consequences are investigated. Practical comments and some modifications are also provided.
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