EDN

FFT Algorithm Based Audio Spectrum Analyzer

This audio spectrum analyzer utilizes an ARM7 LPC2138 microcontroller to create an FFT algorithm while performing digital signal processing without the use of special DSP processor. This audio ...
EDN

FIR Filters and FFTs with 28-nm Variable-Precision DSP Architecture

Across a range of applications, the two most common functions implemented in FPGA-based high-performance signal processing are finite impulse response (FIR) filters and fast Fourier transforms (FFTs).
Design-Reuse

Array Processors Enable Flexibility in FFT Designs

Although it has found many uses in signal processing, the Fast Fourier Transform (FFT) has taken on even more importance as a fundamental part of the algorithms used for communications protocols based ...
IEEE

The demodulation algorithm of track frequency shift signal based on windowed interpolation FFT

Abstract: The track frequency shift signal is closely related to the safe operation of railway locomotives. This paper presents a real - time modified FFT algorithm for the demodulation of rail track ...