Howtosignalprocessing
- What is a polyphase channelizer?
- What does a channelizer do?
- What is polyphase filter bank?
- What is a channelizer DSP?
What is a polyphase channelizer?
A channelizer is used to separate users or channels in communication systems. A polyphase channelizer is a type of channelizer that uses polyphase filtering to filter, downsample, and downconvert simultaneously.
What does a channelizer do?
The Channelizer block separates a broadband input signal into multiple narrowband output signals. It provides hardware speed and area optimization for streaming data applications.
What is polyphase filter bank?
January 2018) A polyphase quadrature filter, or PQF, is a filter bank which splits an input signal into a given number N (mostly a power of 2) of equidistant sub-bands. These sub-bands are subsampled by a factor of N, so they are critically sampled.
What is a channelizer DSP?
Description. The dsp. Channelizer System object™ separates a broadband input signal into multiple narrow subbands using a fast Fourier transform (FFT)-based analysis filter bank. The filter bank uses a prototype lowpass filter and is implemented using a polyphase structure.
