All Questions
Tagged with sdr signal-processing
7 questions
0
votes
0
answers
271
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Reverse engineering key fob RF signals
I have been trying to decode the signal of a keyfob with a cheap 315MHz RF receiver (XY-MK-5V) and a ...
- 121
0
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0
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634
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what exactly prevents my smartphone from being used as an SDR without a dedicated dongle
The answer seems obvious (frequencies restricted by chips) but I'm looking for a clear and accurate explanation. Several examples of SDR projects connecting an SDR dongle to a smartphone are available ...
- 101
1
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0
answers
142
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Help decoding line code
I have collected a burst signal from a radio device using an RTL-SDR and gnuradio and demodulated the FSK, but am having trouble deciphering what the line code is.
Signal is at 151.3MHz
Here is the ...
- 111
0
votes
1
answer
487
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Determining the bit rate on a real-time USRP implementation
I'm transmitting a 16-QAM signal using an NI 2920 USRP. Here is a snapshot of the front panel that is seen (on LabVIEW) -
I'm trying to figure out the bit rate from the given details. The symbol rate ...
- 637
2
votes
5
answers
1k
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Software Defined Radio hardware
Most software defined radio peripherals involve a FPGA. In designing a SDR peripheral, I would like to know whether its possible to design a GNU Radio Compatible SDR hardware peripheral without any ...
- 1,275
1
vote
1
answer
143
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Signal recovery in Frequency domain?
I am writing a MATLAB program in which I am doing OFDM symbol transmission through Fading channel:
...
- 11
2
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2
answers
3k
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Down-Conversion of RF signal
I have a basic question about down-conversion of RF-signals.
The ideal scenario is described as follows.
Given a RF-signal (coming from an antenna), i.e., a real-valued function x(t), and given a ...
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