[Discuss-gnuradio] Bug in additive scrambler

2017-05-14 Thread Daniel Estévez
Hi all, I have found a bug in the "Additive scrambler" block. Sometimes the first bit after reset is incorrect. See the attached .grc file to replicate. Description of the test setup and bug: A length in bytes is fixed. By default it is 5 bytes, but this can be changed using a QT GUI entry. The

[Discuss-gnuradio] Performing the required compensation steps for PSK/QAM modulations at the receiver

2017-05-14 Thread Mojtaba Mansour Abadi
Hi Everyone, The flowgraph I am implementing is simple and straight forward. I am modulation a set of data and a known preamble. The modulations I am looking at are either PSK or QAM. After a block of "Channel Model", I want to demodulate the signal and obviously, for fair SNR values I should rece

Re: [Discuss-gnuradio] GFSK mod/demod does not work OK with wav file

2017-05-14 Thread Fernando
With 8 samples/symbol there was aU and CPU at 94% (I have three AMD cores) I have reduced it to 2 s/s as suggested Cinaed, then aU dissapear and CPU is at 70%, sound is a little better but still intermittent. File is sampled at 44100 and with direct connection from wav file source to audio sink

Re: [Discuss-gnuradio] GFSK mod/demod does not work OK with wav file

2017-05-14 Thread Cinaed Simson
On 05/14/2017 01:06 PM, Fernando wrote: > With 8 samples/symbol there was aU and CPU at 94% (I have three AMD cores> I > have reduced it to 2 s/s as suggested Cinaed, then aU dissapear and > CPU is at 70%, sound is a little better but still intermittent. > File is sampled at 44100 and with direct

[Discuss-gnuradio] Attribute Error

2017-05-14 Thread Ayan Chatterjee
Hi all, I have made an out-of-tree module for a switch. But I am getting this error while executing -> AttributeError: 'module' object has no attribute 'cc' Any suggestions on how to get rid of this. Thanks. Regards, Ayan ___ Discuss-gnuradio mailing