[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Discuss-gnuradio] PC requirements for DVB-S2 processing at a high b

From: Ron Economos
Subject: Re: [Discuss-gnuradio] PC requirements for DVB-S2 processing at a high bandwidth
Date: Thu, 31 Jan 2019 11:55:02 -0800
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.4.0

The processing requirement for DVB-S2 are significant, especially the receiver. Since you're using an X-series USRP, I'll guess you're interested in satellite downlinks which can be 30 to 50 Msyms/s.

Basically, the requirement would be the most powerful system you can afford. Something with an Intel i9 or Xeon Gold/Platinum series processor.

Even then, real-time processing for the receiver will be limited unless you use an FPGA or GPU for the LDPC decoding.

The good news is that I've ported an SIMD optimized LDPC decoder to GNU Radio.


Which is ported from:


However, it's still not capable of satellite bitrates.


On 1/31/19 10:33, Maria Jesus CaƱavate Sanchez wrote:
Hi there!

My name is Maria and I would like to make a question regarding the kind of PC characteristics which would be required to be able to process the signal in real-time (on the PC) when using the maximum bandwidth available on the USRP X-series.

The scenario would be the following one: we would like to use GNU radio to send and receive DVB-S2 signals. Hence, the PC will do all the processing to check the BER, constellation, EVM, etc. Do you think it is possible to use a PC (with SSD drive and some suggested requirements) which could do the processing in real time or the only way to achieve that bandwidth in real time would be using the FPGA of the USRP? If the second case, then I guess we will do the processing off-line =)

Thank you very much in advance!

Best regards,

Maria Jesus

Discuss-gnuradio mailing list

reply via email to

[Prev in Thread] Current Thread [Next in Thread]