The Fractional Fourier transform (FRFT) is a relatively novel linear transforms that is a
generalization of conventional Fourier transform (FT). FRFT can transform a particular signal …

An N-element array with receivers subject to an N-point spatial fast Fourier transform (FFT)
leads to N directionally orthogonal radio frequency (RF) beams. FFTs are fast algorithms for …

Improving the robustness of watermark in withstanding attacks has been one of the main
research objectives in digital image watermarking. In this paper we propose a novel region …

According to the characteristics of transient power quality disturbances, the Hilbert-Huang
transform is used for the analysis of power quality disturbance signal, its core is to carry the …

Debido a los avances tecnológicos en la industria, la informática y la incursión de nuevos
dispositivos electrónicos (conversores análogo-digital, amplificadores de potencia …