BCH Encoding Issue about py_aff3ct

[rtajan]

Hi,

Thank you for using our project.

First note that Decoder_BCH hesitates from Decoder_SIHO.
I think that you get this error because the task decode_siho is not implemented in the aff3ct::module::Decoder_SIHO class.

Since Decoder_BCH does not implement its own, the exception is raised.

A decoder that has an implemented decode_siho task is for example Decoder_BCH_std.
You can build it within your example with

dec  = py_aff3ct.module.decoder.Decoder_BCH_std(K, N, enc_pol)

For examples using other coding strategies you can find some here.

It is possible to use py_aff3ct with an SDR module for example using the UHD C++ API (see here for example).

Regards

[MrEvgy]

Thank you very much for the fast and detailed response! It works well now and the examples in the links are exactly like what I was looking for.

One followup question: while reading the source bits, I see that the source has 7 values of 1 (read using the src['generate::U_K'][:] command). I expected random values, do you know perhaps why it is a constant 1?

Thanks again.

[rtajan]

I believe this is just a realization, if you call src['generate']several times does the value of src['generate::U_K'][:] change?
You can also try to change the seed of the random number generator of the Source_random module, see this constructor

__init__(self: py_aff3ct.module.source.Source_random, K: int, seed: int = 0) -> None

[MrEvgy]

Works well, I was just reading the vector too early :(
Also, tried one of the python examples from your link (the bfer_polar.py), also works good.

Thanks again.