Radio I/O
Transmit and receive real-world RF signals
When transmitting or receiving real-world RF signals, use I/O properties and techniques to perform single and multichannel I/O, detect lost samples, apply burst mode buffering, and repeatedly transmit a waveform.
Functions
sdrrx | Create receiver System object for USRP embedded series radio hardware |
sdrtx | Create transmitter System object for USRP embedded series radio hardware |
capture | Capture contiguous RF data using USRP embedded series radio hardware |
designCustomFilter | Design custom filter for Analog Devices AD9361 RF chip |
info | Synchronize receiver or transmitter radio settings with radio hardware |
transmitRepeat | Download waveform signal to radio and repeatedly transmit it over the air |
Blocks
E3xx Receiver | Receive data from USRP E3xx radio hardware |
E3xx Transmitter | Send data to USRP E3xx radio hardware |
Objects
comm.SDRRxE3xx | Receive data from USRP E3xx radio hardware |
comm.SDRTxE3xx | Send data to USRP E3xx radio hardware |
Topics
Radio I/O Properties and Techniques
- Channel I/O
Overview of available radio channels to send and receive data. - Repeated Waveform Transmitter
Use a transmitter System object™ for repeated signal transmission. - Capture Over-the-Air Signals
Record RF signals for post-capture processing in MATLAB®. - SDR Receiver Sample Times
Set sample times in receiver blocks or receiver System objects. - Data Frame Lengths
Set data frame length in receiver blocks or receiver System objects. - Detect Underruns and Overruns
Detect underruns and overruns using the lost sample indicator. - Burst Mode
To achieve real time performance, enable burst mode. - Apply Conditional Execution
To determine whether you receive valid data from the radio hardware, apply conditional execution.
Digital Modulation
- Transmission of a QPSK Waveform Using USRP E3xx
Transmit QPSK modulated messages onto a carrier with a specified center frequency. - Reception of a QPSK Waveform Using USRP E3xx
Receive and demodulate QPSK modulated messages. - Transmission and Reception of an Image Using WLAN Toolbox and a Single USRP E3xx
Transmit and receive encoded WLAN packets using a single SDR device.
Diagnostics
- Frequency Offset Calibration Receiver Using USRP E3xx
Determine frequency offset between SDR devices using a transmitter and a receiver. - Frequency Offset Calibration Transmitter Using USRP Embedded Series
Determine frequency offset between SDR devices using a transmitter and a receiver.
Troubleshooting
Resolve issues encountered during installation or while using the I/O mode features of the support package.