On 11/26/2009 10:08 AM, Przemyslaw Dmochowski wrote:
Hello everyone,
I work on an SDR that would work from a battery and without a PC.
I read the posts about SPI transfer rates and I was wonder whether
you've done some work to test real processing power of the BeagleBoard.
What I am interested in is the maximum spectrum bandwidth that can be
achieved with the combination of USRP and BeagleBoard assuming the data
transfer between them is done over SPI interface.
My applications I am thinking of at the moment are not very demanding
(AM/FM UHF analog radio) but in the future I would want to have 5Mbits/s
digital transmission (probably FSK) over the radio using OFDM.
I don't own the BeagleBoard at the moment and I would appreciate your
comments on the signal processing capabilities of the USRP-BB
configuration. Do you think the 5Mbits/s using OFDM will be possible?
Basically, we need to get more signal processing code running on the
OMAP3 to answer this question.
I suspect that processing will need to be divided between an FPGA, the
DSP and the GPP for 5 Mbits/s OFDM.
Philip
