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Questions tagged [iq]

8 questions
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GnuRadio w/ LimeSDR IQ Splitter Phase Shift

The following flowgraph implements an IQ splitter. My doubt lies on the complex to float block, where Real and Imag parts of the signal are splitted and given as output. Mathematically, do they represent the IN Phase and Quadrature versions of the…
andremartins4
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Store data in ( .wav) format from RTL-SDR device using c#

I am able to connect with RTL-SDR using librtlsdr.dll and libusb-1.0.dll by using (https://github.com/nandortoth/rtlsdr-manager) wrapper in c# .netcore3.0 . Started getting sampledata from device by set device frequency. i am getting data in List…
user2797910
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How to shift IQ stream using numpy?

I have a python code that reads an IQ stream from a RTL-SDR dongle and process it to a ndarray, the IQ from the ndarray is then demodulated to extract an USB signal and written to a file, the code is something like: def MainLoop(): ... # A loop…
iu2frl
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Connect USRP N310 to an external front-end, requiring divided I/Q components

I am trying to connect a USRP N310 to an external front end, which requires divided I/Q components. I also have a Basic TX/RX board. Is it possible to use such kind of boards with the USRP N310? Or, is there any other way to get I/Q components…
sigrid
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how to plot spectrogram from IQ signal in matlab?

I have an IQ signal saved using BladeRF platform in .bin file. I want to plot the spectrogram image of this signal in matlab I tried with the existing function of matlab spectrogram but I got an image which is not expected, in fact my signal is over…
researcher
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How to convert 24bit to 32 bit in Python?

How to convert 24bit to 32bit in Python? I have a binary file with 24i24q, meaning 24bits for each sample. They are big endian. I thought about open the file and save each sample to a Numpy array. Then taking each item from the Numpy array and…
Kokoloko
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DSP Filter types Issues

If I uses Low Pass Filter instead of Band Pass Filter,Is some information will be lost? does this do any changes on the shape of IQ?
Seraj Alhamidi
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How to conver raw I/Q data to their numerical values

I would like to know how can I convert a raw IQ data file (that was captured using (sdr)) to it's numerical value using matlab. something like this e.x (I=19.5 , Q=90). Thanks in advance.
AceSiddig
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