Re: [Discuss-gnuradio] GNU Radio / Software Radio conceptual question

2014-06-17 Thread Martin Braun
On 17.06.2014 04:24, Michael Rahaim wrote: I have a relatively high level question regarding gnuradio and software radio in general. Is it a fair generalization to say that gnuradio is operating at the application layer and is essentially emulating a physical layer implementation (or the

Re: [Discuss-gnuradio] GNU Radio / Software Radio conceptual question

2014-06-17 Thread Michael Rahaim
Thanks for the quick replies. I can see how putting the SDR in a block directly before the DAC or after the ADC is a PHY implementation, and how this is the case when using embedded devices such as the E series USRPs and the embedded SDR components in a base station. My confusion is when

Re: [Discuss-gnuradio] GNU Radio / Software Radio conceptual question

2014-06-17 Thread Sylvain Munaut
To me, the wrapping and passing of digital samples seems to put a stack within the stack. The ends of the chain are unaware of the internal message passing and act as if the samples were directly passed to the DAC and ADC, ... Yes, and ? These are un-related stacks. Some highend DAC/ADC have

Re: [Discuss-gnuradio] GNU Radio / Software Radio conceptual question

2014-06-17 Thread Martin Braun
On 17.06.2014 13:52, Sylvain Munaut wrote: To me, the wrapping and passing of digital samples seems to put a stack within the stack. The ends of the chain are unaware of the internal message passing and act as if the samples were directly passed to the DAC and ADC, ... Yes, and ? These are

[Discuss-gnuradio] GNU Radio / Software Radio conceptual question

2014-06-16 Thread Michael Rahaim
Hi all, I have a relatively high level question regarding gnuradio and software radio in general. Is it a fair generalization to say that gnuradio is operating at the application layer and is essentially emulating a physical layer implementation (or the implementation of other lower layer

Re: [Discuss-gnuradio] GNU Radio / Software Radio conceptual question

2014-06-16 Thread Marcus D. Leech
On 06/16/2014 10:24 PM, Michael Rahaim wrote: Hi all, I have a relatively high level question regarding gnuradio and software radio in general. Is it a fair generalization to say that gnuradio is operating at the application layer and is essentially emulating a physical layer implementation