Is there a Julia equivalent of MATLAB’s rcosdesign?

Specific Domains Signal and Image Processing
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1

I’m porting a QPSK simulation from MATLAB to Julia and need a root-raised-cosine filter.
MATLAB provides:

rrc_filter = rcosdesign(beta, span, samples_per_symbol, "sqrt");

I checked DSP.jl, but rcosdesign does not appear to be available:

using DSP
rcosdesign(0.35, 4, 20)
# UndefVarError: rcosdesign not defined

For now, I implemented the root-raised-cosine impulse response manually and normalized it to unit energy. However, I wanted to check whether:

  1. There is an existing Julia package or function that provides RRC filters.
  2. DSP.jl has an alternative API I overlooked.
  3. There is interest in adding an rcosdesign-equivalent function to DSP.jl.
    The desired behavior is equivalent to MATLAB’s square-root raised-cosine mode, with parameters for roll-off factor, span in symbols, samples per symbol, and energy normalization.
    Any recommendations would be appreciated.
2

There is in SignalAnalysis.jl, which uses DSP.jl.

Here is some info on it:

3

Thanks a lot, I’ll check it out @kahliburke .

4

There is also WaveformCommunications.jl (unregistered), which provides functions to generate the more common pulse shapes and constellations.

5

Thanks a lot @mbaz , the library has a structure which I intended to build honestly.. anyways I’ll check it out thanks a lot bro

6

Is there a package which simulates the Tx, Channel and Rx?

7

RRCFilters.jl can simulate a complete digital baseband link: transmitter, impaired channel, and receiver. It includes CRC/FEC, QAM/PSK, RRC pulse shaping, AWGN, multipath, timing and carrier offsets, AGC, synchronization, equalization, soft demodulation, Viterbi decoding, and BER/EVM measurements.
The blocks are composable rather than wrapped in one large simulator object, but the repository includes a complete Tx → channel → synchronized Rx example:

It focuses on complex-baseband communications, not circuit-level RF or electromagnetic propagation.

8

I haven’t published most of the code I use. I’d suggest taking a look at the Julia Telecom organization.