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

FROM EDN EUROPE: Polyphase DFT IP improves filter performance

You can build filters using polyphase DFT (discrete Fourier transform) cores that are now available as off-the-shelf IP (intellectual property) from UK signal-processing company RF Engines. The cores ...
Design-Reuse

RF Engines adds world’s first off-the-shelf Polyphase DFT cores to its range of signal processing technologies

May 19, 2003 - RF Engines Limited (RFEL), the signal-processing specialist based on the Isle of Wight, UK, has added high speed Polyphase DFT (Discrete Fourier Transform) cores to its extensive range ...
Design-Reuse

Optimizing Up/Down Conversion with FPGA Techniques

Digital upconverters (DUCs) and digital downconverters (DDCs) are important components of every modern wireless base station design. While many DUC and DDC designs are available, there is a clear call ...
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 ...
Electronics Weekly

RF Engines puts fast polyphase DFT cores into commercial IPpackage

Isle of Wight-based DSP specialist RF Engines (RFEL) has added high speed polyphase discrete Fourier transform cores to its wares. “Polyphase DFT has been around for a while but we believe that we are ...