Questions tagged [usrp]
The usrp tag has no usage guidance.
19
questions with no upvoted or accepted answers
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Having trouble transmitting/receiving a BPSK signal using two USRPs
I am relatively new to working with SDRs and GNURadio and I am attempting to generate a BPSK signal and transmit it through one USRP and receive and demodulate it on another USRP. I am using GNURadio ...
- 31
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23
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Channel Impulse Response using USRP(N310) and Gnuradio
I'm attempting to find the Channel Impulse Response using USRP(N310) and Gnuradio. I'm using a single USRP for both transmission and reception. The antennas are positioned 3 meters apart in a hall, ...
- 11
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22
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USRP N210 B & F Lights
During setup of a USRP N210 on MATLAB's Communications Toolbox Support Package for USRP Radio, the initial test failed on "Receive the signal and verify the frequency of the tone" field. ...
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GNURadio 3.8 QPSK : Hard time to recover the right symbols/data
Cheers, I am demodulating a QPSK signal on GNURadio, the data transmitted is a known HEX file with the "1ACFFC1D" foreword every 124 bytes, to check if the demodulation is a success, it ...
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3k
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USRP + GNU Radio as 1 GHz bandwidth spectrum analyzer
I have maybe not trivial but some interesting question.
I need to create 802.11ac channels spectrum analyzer with USRP.
Hardware: USRP B210
Software: GNU Radio 3.7.9
PC: Intel Core i3 i3210m 16 GB ...
- 11
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17
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USRP X310 not receiving anything but noise
I have been trying to receive different types of signals using a USRP X310 but all I can receive is noise. I tried different types of antennas and designed many different kinds of blocks but I get ...
- 1,204
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32
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finding Channel Impulse Response using GNUradio and USRPs
I would like to share my project where I am calculating the Channel Impulse Response using the Auto-correlation Method in the Time domain. I have uploaded a video demonstrating the experiment, ...
- 11
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USRP N210 Connection Issues on Ubuntu 22.04 VirtualBox VM
I am running into consistent connection issues when trying to run a USRP N210 on a VirtualBox Ubuntu 22.04 VM. I built uhd from source on the ettus page, configured a static IP address in Ubuntu, ...
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27
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FMCW RADAR using Phased Array Antenna
I need assistance to calculate angle of arrival using MUSIC algorithm for Phased Antenna Array with GNU radio and USRP
#Zeeshan
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41
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Different (incorrect) estimation of SNR values at reception
I want to estimate the SNR value at the input of my USRP. To do this, I connect two blocks: MPSK SNR Estimator and MSPK SNR Estimator Probe.
Next, I look at the values that I got using the MSPK SNR ...
- 1
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49
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OFDM does not work with USRP
I found the ofdm flowchart in the Gnu radio examples.(ofdm_loopback)
Scheme:
The spectrum and the received data of the received signal:
After that, I connect the USRP Sink and the USRP Source.
The ...
- 1
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41
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Is there any way to fix USRP that doesn't connect?
I am new to SDR. But I have an USRP X310. Installed UHD and GNU Radio from source on Ubuntu 20.04. Connected to the USRP with SFP+ through the port 1 and powered the USRP. But the LED of the ethernet ...
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106
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How do I set GNU Radio Es/No?
I am trying to create a random signal in GNU Radio (using DVB-S2 specs for the physical layer) and transmit this signal using a USRP X310. This is shown below:
Problem: I would like to be able to ...
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158
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GNU Radio and USRP audio source problem
I have a modem which accepts a voice in GNU Radio, digitizes and compresses it (codec2) and transmits it using USRP on one laptop and receives it on another laptop.
When I use "Wave File Source&...
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429
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Finding time of arrival of signal using GNU radio
I am sending a repeating BPSK modulated PN sequence signal from a USRP x310 transmitter. I am receiving the sequence with another USRP x310. Both are attached to an octoclock. Is there a way to get ...
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3k
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16 QAM GNU Radio
I have been trying to implement a transmitter receiver flow graph which uses 16 QAM. I am using a USRP B200 as the transmitter and a RTL-SDR as the receiver.
I used uhd_packet_tx.grc and ...
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2k
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Not sure why I get errors of missing blocks when trying examples in Gnuradio Companion
I just started working with GNURadio without much of familiarity about this software. I found a couple examples online and I tried to run them but I get many Missing Block errors.
Thats how it looks ...
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-1
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1
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201
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Unstable frequency/phase when using external reference for Ettus B200
I am attempting to do a simple record of a CW, 250MHz signal at the Rx port of an Ettus B200 using an Anritsu MG369 signal generator. I am using the 10 MHz ref signal provided by the SG (output @ ~...
-1
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2
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3k
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GNU Radio QPSK 4 Symbols
I'd like to generate a simple QPSK signal in GNU radio, but so far I haven't been able to get it to perform the way I'd like and I'm not sure if this has to do with some misunderstanding I have about ...
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