Hardware Requirements:
Software Requirements
Configuration
Hi, I try run the application but i got errors in receiver
first theres a bad wired in the USRP receiver, but I supose that data is CBD, is correct?.
2nd I install the ni vision acquisition software as recomended but is missing the IMAQ Copy VI.
How can I get this VI ?
José Ribeiro
Vision Development Module may be needed. We'll work on consolidating these dependencies because very little of the Vision toolkits are being utilized. (Vision Development Module added to the page, linked above under software requrements)
Hi,I try to run but i got this error
niUSRP Fetch Rx Data (CDB).vi<ERR>Overflow: an internal receive buffer has filled before the data could be returned. Consider reducing the IQ rate, increasing the Fetch rate, or increasing the number of samples per Fetch.
I changed the IQ rate but i still get tis error.
How can i fix this?
Thank you
Hello,
What are the main things I have to consider if I want to eliminate the MIMO cable and use just the antenas for transmit and receive?
Thank you,
Daniel
Hello,
I can't run the application because of missing vi (find, open and close camera,IMAQdx Get Image,....), however I install all the software requirements.
So, what can be the problem ?
Thanks
Djam
Great demostration.
However I'm encountering a problem. My receiver doesn't recover transmitted data fully. For example, when transmitting text, the receiver only occasionally decodes and recovers the message.
Could you think of any reason, this might happen?
Thanks
Tim
This demo sometimes does not receive text messages properly. Sometime it receives garbage and sometime it does not receive any message. Also when I try to transmit image. Nothing appears on the recever side although waveform shows that data is coming but nothing appears in the image box.
Can any body guide me about it
Can I use USRP RIO for this example? how to configure the RF ports specifically TX1 and RX1, in case I will be using RF0/TX1 and RF1/RX1 of the USRP RIO?
Hi, I want to thanks for this demo it is really good, however I would like to know if you can help me with some troubles I´m having by executing the VI´s.
As a reference I tell you that I´m working with LV2013 and I have all the required modules.
I tell you that I open the Tx & Rx VI´s without problems and I configured all the parameters needed: dev config (IQ sample rate=1.2M, Frequency: 2.2G ), packeting and modulation.
I could Tx an Rx text perfectly, however when I try to work with Images or Videos (from my web cam) I can´t see the image or video generated in the reciver VI, when I see the debugging section it looks ok because there are no errors, however I still can´t see the image or video regenerated.
Are there other parameters to transmit this type of data? Are there other software components needed? As I tell you I heve opened both VI´s without missing complements when loading.
I´ll be grateful for your reponse.
Looks like the signal may be too strong. Also be sure to open MAX and
reduce the webcam resolution. By default it us usually much too high.
Erik
From: alesms <web.community@ni.com>
To: ErikL <erik.luther@ni.com>
Date: 05/05/2015 03:00 PM
Subject: Re: - Wireless Video Link
Community
Wireless Video Link
new comment by alesms View all comments on this document
Hi, I want to thanks for this demo it is really good, however I would like
to know if you can help me with some troubles I´m having by executing the
VI´s.
As a reference I tell you that I´m working with LV2013 and I have all the
required modules.
I tell you that I open the Tx & Rx VI´s without problems and I configured
all the parameters needed: dev config (IQ sample rate=1.2M, Frequency:
2.2G ), packeting and modulation.
I could Tx an Rx text perfectly, however when I try to work with Images or
Videos (from my web cam) I can´t see the image or video generated in the
reciver VI, when I see the debugging section it looks ok because there are
no errors, however I still can´t see the image or video regenerated.
Are there other parameters to transmit this type of data? Are there other
software components needed? As I tell you I heve opened both VI´s without
missing complements when loading.
I´ll be grateful for your reponse.
https://decibel.ni.com/content/servlet/JiveServlet/downloadImage/105-42887-189140/310-174/Image1.jpg
https://decibel.ni.com/content/servlet/JiveServlet/downloadImage/105-42887-189150/310-174/Image2.jpg
Reply to this email to respond to alesms's comment.
HI everyone,
appreciate your help in this matter.. Currently we are trying to send video using this example and we would like to know whether this demo can support voice transmission as well. let's say our camera comes with microphone is it possible if we receive the voice at the receiver side?
thank you very much
im also having the same problem...is there any way to fix this?
Labview version : 2013 32-bit
OS : Windows 7
Vision development module is installed
Hello Sir
i have two questions.
1- How can i calculate the Bit Error Rate by using the same example
2-i'm using 4 modulation schemes BPSK, QPSK, 16QAM and 64 QAM i need to synchronize these 4 schemes. Like if my transmitter transmit using bpsk then reciver sence the scheme and demodulate it. i need to transmit information of modulation schemes in packets.is it possible?How?
Hi
I ran the example on two 2953Rs. Please note there is no " MIMO Data and Synchronization Cable" and it seems there is no port for that in this model. The constellation comes and goes on the receiver side and very few video frames are received. Is this because of the missing cable ? Is there a workaround?
Can you briefly explain, how the receiver works? removing dc noise, concatenating packets , demodulation etc.
Sir! I'm getting this error. What can I do?
niUSRP Fetch Rx Data (CDB).vi<ERR>Overflow: an internal receive buffer has filled before the data could be returned. Consider reducing the IQ rate, increasing the Fetch rate, or increasing the number of samples per Fetch.
Can we do this in LabVIEW Comms?
I think Recieve vi, video decode subvi is broken. I can snap 1 picture then i could not snap another frame. I could not convert to string to picture.
Does anyboady solve this problem?
Hello,
I am new to the Labview. I am transmitting a .avi file from one system to other using USRPs. In above vi, Video is taken using a webcam. Anyhow, can I use a .avi file instead of webcam video? Kindly let me know.
Good afternoon my name is Francisco I am doing a thesis based on the MIMO 6x6 program of this link: https://forums.ni.com/t5/Software-Defined-Radio/6x6-MIMO-OFDM-System-with-NI My question is whether you can use different parameters or configurations to use this program for MIMO 4x4 and if you could help me with this information please be very supportive. Beforehand my sincere thanks.
Hi there ... I want the modules that will open the wireless video file as every time I open the file I get many errors to run the transmitter and reciever ..in addition I work on labview 2017 ..please help me guys