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 ...
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 ...
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 ...
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