|From:||Marcus D. Leech|
|Subject:||Re: [Discuss-gnuradio] is ethernet protocol usrp use reliable to transmit data?|
|Date:||Tue, 16 Aug 2011 23:38:34 -0400|
|User-agent:||Mozilla/5.0 (X11; U; Linux i686; en-US; rv:18.104.22.168) Gecko/20101027 Fedora/3.0.10-1.fc12 Thunderbird/3.0.10|
On 08/16/2011 11:32 PM, Page Jack wrote:
my USRP N200 sometimes receive data wrong, I don't know where is the problem in my application orDo you mean samples are received incorrectly, or your high-level data packets are received incorrectly.
The transport protocol used is based on UDP, which has no inherent error-recovery mechanism, but
when carried over a local ethernet connection, should have a vanishingly-tiny error rate. Vastly more
likely that UHD-level UDP packets will get dropped due to buffer resource issues than actual data
errors on the packets.
Keep in mind that what UHD "carries" is just samples of an analog phenomenon. While it carries those
samples quite faithfully, the samples themselves may be distorted in many different ways that affect
-- Principal Investigator Shirleys Bay Radio Astronomy Consortium http://www.sbrac.org
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