why do i get zero vector when using USRP N210 with MATLAB using comm.SDRuReceiver ?

3 次查看（过去 30 天）
Hadeel S. Abed
Hadeel S. Abed 2021-3-28
评论： Karunya Choppara 2022-5-10
i want to recived real TV signal and using the following functions:
radio = comm.SDRuReceiver( 'Platform','N200/N210/USRP2','IPAddress','192.168.10.2', ...
'CenterFrequency',650e6);
spectrumAnalyzer = dsp.SpectrumAnalyzer('InputDomain','Frequency',....
'SampleRate', 1e9,....
'SpectrumType', 'Power density',...
'YLimits', [-130,20],...
'PlotAsTwoSidedSpectrum', false,...
'SpectralAverages', 50, ...
'FrequencySpan', 'Start and stop frequencies', ...
'StartFrequency', 500e6, ...
'StopFrequency', 800e6,...
'Position', figposition([50 30 30 40])) ;
[rxSig, len ] = radio();
spectrumAnalyzer(rxSig);
why the {rxSig} is zeros and also the plot results is zero.

请先登录，再回答此问题。

采纳的回答

Karunya Choppara
Karunya Choppara 2021-4-17
When len = 0, the data from radio() call is not a valid data, and we see all zeros in the rxSig output.
When providing data to the spectrumAnalyzer, we need to check the condition that len output is greater then 0.
[rxSig, len ] = radio();
if (len>0)
spectrumAnalyzer(rxSig);
end
  4 个评论
显示 2更早的评论
Sana Rehman
Sana Rehman 2022-5-10
Hi when i am doing the communication betwee usrp n 2920 . the receiver is receiving the messy code rather than the message i sent . the clock is fixed i.e. both the devices are synchronized and also the gain has been changed too but its seems like the gain change in irrelevant. Could you please help how to get the successful communication

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Radio Management 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by