Fourier transforms

Toward practical compressed sensing

February 1, 2013

Researchers show how the vagaries of real-world circuitry affect the performance of a promising new technique in signal processing and imaging.

Also labeled: Compressed sensing, Computer science and technology, Research, Research Laboratory of Electronics, Graduate, postdoctoral, Electrical Engineering & Computer Science (eecs), Electrical engineering and electronics, Electrocardiogram monitoring, Spectrum sensing, Algorithms

Faster fourier transform named one of world’s most important emerging technologies

May 7, 2012

Also labeled: Awards, honors and fellowships, Computer Science and Artificial Intelligence Laboratory (CSAIL), Computer science and technology, Research

The faster-than-fast Fourier transform

January 18, 2012

For a large range of practically useful cases, MIT researchers find a way to increase the speed of one of the most important algorithms in the information sciences.

Also labeled: Compression, Computer Science and Artificial Intelligence Laboratory (CSAIL), Computer science and technology, Electrical engineering and electronics, Signal processing

Unraveling the Matrix

July 29, 2010

A new way of analyzing grids of numbers known as matrices could improve signal-processing applications and data-compression schemes.

Also labeled: Digital signal processing, Linear algebra, Mathematics, Matrices, Video, Wavelets

Explained: The Discrete Fourier Transform

November 25, 2009

The theories of an early-19th-century French mathematician have emerged from obscurity to become part of the basic language of engineering.

Also labeled: Compression, Computer science and technology, Electrical engineering and electronics, Explained, Signal processing