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Re: [Discuss-gnuradio] Bits inserted at random places

From: Martin Braun
Subject: Re: [Discuss-gnuradio] Bits inserted at random places
Date: Thu, 10 Aug 2017 17:10:38 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1


can you share some details on the receiver code you're using?

-- M

On 08/09/2017 06:44 PM, 李博远 wrote:
> Hi,
> I have implemented BPSK and OFDM in GNURadio. They are modified from the
> examples given, just without those crc32 modules. They work well in
> GNURadio.
> However, when I test the programs on the hardware, USRP x310, a problem
> emerges. I found that often than not, there are some extra bits in my
> data stream at random locations, even when the SNR is as high as 20dB.
> This messes up the data alignment, and makes it difficult to calculate
> the BER(bit error rate). This problem exists in both BPSK and OFDM. 
> Can anyone share his/her opinion on this please? What may be the cause?
> What can I do to mitigate it? It has bothered me for a long time.

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