This paper presents a low-complexity algorithm and architecture to compute power spectral
density (PSD) using the Welch method. The Welch algorithm provides a good estimate of the …

Power Spectral Density (PSD) is an essential representation of the signal spectrum that
depicts the power measurement content versus frequency. PSD is typically used to …

This report describes Welch's method for computing Power Spectral Densities (PSDs). We
first describe the bandpass filter method which uses filtering, squaring, and averaging …

This brief presents a new energy efficient Fast-Fourier Transform (FFT) architecture for real-
valued applications. The proposed architecture decimates the FFT in time domain with bit …

Fast Fourier transform (FFT) is a significant technique in the digital signal processing (DSP).
The intrinsic weak point of the primary designs of FFT was the use of multipliers. CORDIC is …

Discrete Fourier Transform (DFT) and Fast Fourier Transform (FFT) are core components in
the field of signal processing. However, in the existing research, there is no fully analog …

This brief presents the feedforward short-time Fourier transform (STFT). This new approach
is based on reusing the calculations of the STFT at consecutive time instants. This leads to …

In embedded biomedical applications, spectrum analysis algorithms such as fast Fourier
transform (FFT) are crucial for pattern detection and have been the focus of continued …

A concept of integer fast Fourier transform (IntFFT) for approximating the discrete Fourier
transform is introduced. Unlike the fixed-point fast Fourier transform (FxpFFT), the new …

Spectrum and spectral density estimation by the Discrete Fourier transform (DFT), including a
comprehensive list of window funct Page 1 Spectrum and spectral density estimation by the …