EDN

FFT convolution and the overlap-add method

This article presents two important DSP techniques, the overlap-add method, and FFT convolution. The overlap-add method is used to break long signals into smaller segments for easier processing. FFT ...
EDN

Efficient radix-4 FFT on StarCore SC3000 DSPs

The Fast Fourier Transform (FFT) is a widely used algorithm that computes the Discrete Fourier Transform (DFT) using much fewer operations than a direct implementation of the DFT. FFTs are of great ...
Design-Reuse

Floating-point FFT with Minimal Hardware

There is a natural preference to use floating-point implementations in custom embedded applications because they offer a much higher dynamic range and as a byproduct bypass the design hassle of ...
Design-Reuse

FPGAs: Embedded Apps : FPGA-based FFT engine handles four times more input data

Rodger Hosking, Vice President, Richard Kuenzler, Engineer, Pentek Inc., Upper Saddle River, N.J. For years, field-programmable gate array (FPGA) technology has been a major cornerstone of board-level ...