Communications System Toolbox™ includes tools using either MATLAB® or Simulink® for signal conditioning filtering.
|Ideal Rectangular Pulse Filter||Shape input signal using ideal rectangular pulses|
|Integrate and Dump||Integrate discrete-time signal, resetting to zero periodically|
|Raised Cosine Receive Filter||Apply pulse shaping by downsampling signal using raised cosine FIR filter|
|Raised Cosine Transmit Filter||Apply pulse shaping by upsampling signal using raised cosine FIR filter|
|Windowed Integrator||Integrate over time window of fixed length|
Describes general comm filtering
The raised cosine filter blocks in the
commfilt2 library implement realizable filters by delaying the peak response.
Filter a 16-QAM signal using a pair of square root raised cosine matched filters.
Designing a raised cosine filter using the
This example illustrates a typical setup in which a transmitter uses a square root raised cosine filter to perform pulse shaping and the corresponding receiver uses a square root raised cosine filter as a matched filter.
Employ raised cosine filtering to reduce inter-symbol interference (ISI) that results from a nonlinear amplifier.