EDN

Polyphase filters reduce saturation

Digital signal processing is ubiquitous in modern electronic systems, from MP3 players to digital cameras to wireless handsets. One of the mainstays of a DSP designer’s tool box is the FIR ...
EDN

Adjacent channel rejection is a key for comparing transient responses of filter Banks

This brief paper examines the most important differences between the responses of the Fast Fourier Transform (FFT) and Polyphase Discrete Fourier Transform (DFT) filter banks. In general, while the ...
Electronic Design

Slice And Dice Chunks Of Radio Spectrum

The path to real-time wideband channelization is camouflaged by different techniques. Among the competing approaches are Pipelined FFT, polyphase DFTs, multiple digital downconverters (DDCs), and both ...
Design-Reuse

RF Engines contracted by Australia's Defence Science and Technology Organisation (DSTO)

Polyphase filtering designs for FPGA provides performance boost for DSTO’s advanced receiver design. April 10, 2006 -- RF Engines (RFEL), the experts in signal processing for FPGA, have been awarded ...