unchannelize
Extract m channels (with identical bandwidth) using a polyphase filter bank and FFT (Harris method).
Calling sequence
Y = unchannelize(x,h,m)
Y = unchannelize(x,h,m)
Parameters
- x:
input signal, 1d vector
- h:
FIR filter coefficients (low pass channel filter), 1d vector
- m:
number of channels e.g. decimation ratio
- Y:
Output matrix, with one row for each output channel.
input signal, 1d vector
FIR filter coefficients (low pass channel filter), 1d vector
number of channels e.g. decimation ratio
Output matrix, with one row for each output channel.
Description
The different channels must be located at (normalized) frequencies of 0, 1/m, ..., (m-1)/m. For other cases, see the reference cited in the bibliography.
Bibliography
Digital Receivers and Transmitters Using Polyphase Filter Banks for Wireless Communications, F.J. Harris, 2003