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 ...
EDN

Filter banks, part 2: Optimization and synthesis

Before we proceed, let's quickly review our filter bank example. Our example, shown in Figure 1, is a size 16 DFT filter bank. The color scheme shows the sample rate change where a 16 MHz input sample ...
GitHub

DrSDR/SDR-Class-PolyPhase-Filter-Banks-GNURadio

this includes gnuradio scripts and an I/Q file to understand polyphase filter banks. the flow graphs show the basic idea, and then lead up to the final polyphase method. the I/Q file has a Fs = 96KHz, ...
IEEE

Spectrally Sharpened Two Channel Graph Filter Bank and Its Polyphase Structure

Abstract: Graph filter banks allow for the spectral analysis of signals defined over graph domains. We consider the construction of two channel biorthogonal filter banks with outputs that are ...
IEEE

Digital receivers and transmitters using polyphase filter banks for wireless communications

Abstract: Provides a tutorial overview of multichannel wireless digital receivers and the relationships between channel bandwidth, channel separation, and channel sample rate. The overview makes ...