[Discuss-gnuradio] ADRV9008-2, Zynq FPGA boards, and gnuradio

2019-06-25 Thread Erik Heinz
Hello everyone, we are developing an application where a large bandwidth (some 100 MHz at 5-6 GHz mid frequency) needs to be processed to extract a small bandwidth payload signal. For rapid prototyping and testing algorithms I am thinking about using an ADRV9008-2 evaluation board, a Xilinx Zy

Re: [Discuss-gnuradio] ADRV9008-2, Zynq FPGA boards, and gnuradio

2019-06-25 Thread CEL
Hi Erik, so, GNU Radio *itself* is purely host-based software; in other words, you'd be processing 100s of MHz on the poor Zynq's ARM (will not even remotely happen). What you'd need is to do the signal processing in the FPGA, for the most significant part. After you've selected your channel and

Re: [Discuss-gnuradio] GNURadio Windows Errors with OsmoSDR

2019-06-25 Thread Geof Nieboer
Patrick, Just to confirm, you started GRC by running the run_GRC.bat file or the link on the start menu? Assuming so. If not that’s the problem and ignore the rest. There is little program out there called “dependency checker” that is invaluable for these issues. Download it and find the .pyd

Re: [Discuss-gnuradio] GNURadio Windows Errors with OsmoSDR

2019-06-25 Thread Geof Nieboer
OK, I think a clue here is that a python dll is installed in System32. Windows will always check System32 regardless of the PATH, so something there might be causing some misdirection. Try this... run the "run_gr.bat" file and once in, run python by simply entering "python" Then enter; import sub

Re: [Discuss-gnuradio] Multiple-Transmitter OFDM

2019-06-25 Thread Ramazan Çetin
Hi, I guess, the receiver cannot synchronize to our transmitters. Is there a way for using occupied carriers for synchronization instead of all carriers in schmidl cox? Best regards. On 24.06.2019 15:00, Ramazan Çetin wrote: Hi Michael, Firstly, thank you for your suggestion. I have tried

Re: [Discuss-gnuradio] Multiple-Transmitter OFDM

2019-06-25 Thread Michael Dickens
Hi Ramazan - The "#f" generally indicates that you the Rx SNR isn't high enough ... nearly, but not quite. The sync symbols are being detected, but the header itself can't be decoded cleanly (CRC fails). In your "test" script, you don't have to worry so much about gains. When using actual over-

Re: [Discuss-gnuradio] Calling a function after every N samples

2019-06-25 Thread Michael Dickens
Hi Kevin - Thanks for the additional info. It seems that you've been doing some serious work trying out various options; very good! If you're using gr-uhd, then you can use the data tag "tx_freq": If it's at the initial sample in the incoming buffer, then it indicates an immediate tune request

Re: [Discuss-gnuradio] GNURadio Windows Errors with OsmoSDR

2019-06-25 Thread W3AXL Patrick
Alright, here we go Following the first set of instructions: C:\Program Files\GNURadio-3.7\bin>python Python 2.7.10 (default, Jun 14 2019, 12:01:58) [MSC v.1900 64 bit (AMD64)] on win32 Type "help", "copyright", "credits" or "license" for more information. >>> im

Re: [Discuss-gnuradio] GNURadio Windows Errors with OsmoSDR

2019-06-25 Thread Geof Nieboer
Hmm. Small thing, you didn’t want to copy that system DLL to the gr-python dir, the gr-python DLL is a custom build. But for the moment let’s not worry about that. Let’s try this as a test... copy the pyd file to /bin folder and see if the error change. If not, then reopen dependency checker