Transmit and Capture

Transmit and capture IQ data over the air for use in simulation, testing, and validation

Configure your software-defined radio (SDR) as a high-speed baseband transmitter, baseband receiver, or baseband transceiver for transmitting or capturing IQ data over the air. Use the captured data to analyze, simulate, test, and validate wireless systems.

Objects

`basebandReceiver`	Configure SDR as baseband receiver (Since R2022a)
`basebandTransceiver`	Configure SDR as baseband transceiver (Since R2022a)
`basebandTransmitter`	Configure SDR as baseband transmitter (Since R2022a)

Functions

`capture`	Capture IQ data using baseband receiver or transceiver (Since R2022a)
`isCapturing`	Status of capture running in background using baseband receiver (Since R2024a)
`captureOutputs`	Retrieve outputs from capture run in background using baseband receiver (Since R2024a)
`stopCapture`	Stop capture running in background using baseband receiver (Since R2024a)
`transmit`	Transmit waveform using baseband transmitter or transceiver (Since R2022a)
`stopTransmission`	Stop transmission from baseband transmitter or transceiver (Since R2022a)

Apps

Wireless Waveform Generator

Create, impair, visualize, and export modulated waveforms

Featured Examples

Capture from Frequency Band

Capture from Frequency Band

Capture IQ data using single radio antenna and plot the frequency spectrum of the captured data.

Open Live Script

Capture Wideband Spectrum by Combining Data from Multiple Antennas

Capture Wideband Spectrum by Combining Data from Multiple Antennas

Capture and plot a wideband spectrum by combining received data from multiple antennas.

Open Live Script

Transmit Waveform

Transmit Waveform

Transmit generated waveform using single radio antenna.

Open Live Script

Loopback Transmit and Capture

Loopback Transmit and Capture

Transmit and capture generated waveform using single radio.

Open Live Script

Transmit App-Generated Wireless Waveform Using Radio Transmitters

Transmit App-Generated Wireless Waveform Using Radio Transmitters

Transmit generated waveform over the air using a radio transmitter available in the Wireless Waveform Generator app.

Wideband Spectrum Analysis

Wideband Spectrum Analysis

Capture a wideband signal and analyze the captured data with the Signal Analyzer app.

Open Live Script

Calibrate Radio Gain for Signal Capture

Calibrate Radio Gain for Signal Capture

Configure the front-end radio gain of your SDR hardware for your local environment.

Open Live Script

Save Captured Signal with Metadata to Baseband File

Save Captured Signal with Metadata to Baseband File

Capture a signal from the air and save the captured signal to a baseband file with metadata that includes a custom label.

Open Live Script

Evaluate Host Capture Performance

Evaluate Host Capture Performance

Check your host performance capability for capturing data using the baseband receiver.

Open Live Script

5G NR Waveform Capture and Analysis Using Software-Defined Radio

5G NR Waveform Capture and Analysis Using Software-Defined Radio

Generate and transmit a 5G NR waveform continuously over the air using a supported software-defined radio.

(5G Toolbox)

5G NR Synchronization Signal Capture Using Software-Defined Radio

5G NR Synchronization Signal Capture Using Software-Defined Radio

Use a software-defined radio to capture an SS burst. Analyze the capture and identify the strongest SSB.

(5G Toolbox)

Since R2024a

LTE Receiver Using Software-Defined Radio

LTE Receiver Using Software-Defined Radio

Recover the master information block (MIB) and basic system information from an over-the-air LTE downlink (DL) waveform. This example also shows how to receive an LTE waveform using a software-defined radio (SDR) with single or multiple antennas.

(LTE Toolbox)

Recover and Analyze Packets in 802.11 Waveform

Recover and Analyze Packets in 802.11 Waveform

Blindly detect, decode, and analyze IEEE^® 802.11™ packets in a waveform.

(WLAN Toolbox)

WLAN Beacon Receiver Using Software-Defined Radio

WLAN Beacon Receiver Using Software-Defined Radio

Retrieve information about WiFi networks on the 5 GHz band using a software-defined radio.

(WLAN Toolbox)

New

GNSS Signal Transmission Using Software-Defined Radio

GNSS Signal Transmission Using Software-Defined Radio

Generate GNSS waveform and transmit it using SDR.

(Satellite Communications Toolbox)

Since R2024b

Identify LTE and NR Signals from Captured Data Using SDR and Deep Learning

Identify LTE and NR Signals from Captured Data Using SDR and Deep Learning

Use a spectrum sensing neural network to identify LTE and NR signals from wireless data you capture over the air.

Open Live Script

Capture and Label NR and LTE Signals for AI Training

Capture and Label NR and LTE Signals for AI Training

Scan, capture, and label bandwidths with 5G NR and LTE signals.

Open Live Script