Spectrum Monitoring

Capture and analyze IQ data from the air using preamble detection

Configure your software-defined radio (SDR) as a preamble detector to detect and capture specific signal sequences from the air. You can specify standard-based or custom waveforms for detection by using a programmable FIR filter. Use the captured data to analyze, simulate, test, and validate wireless systems.

Objects

preambleDetector Configure SDR as preamble detector

Functions

`capture`	Capture signal of interest from the air upon detection
`plotThreshold`	Plot preamble detection signals for triggering
`transmit`	Transmit waveform using preamble detector
`stopTransmission`	Stop transmission from preamble detector

Featured Examples

Triggered Capture Using Preamble Detection

Capture data from the air upon detecting a preamble sequence.

Open Live Script

Triggered WLAN Waveform Capture Using Preamble Detection

Capture WLAN waveform from the air upon detecting a legacy long training field (L-LTF).

Open Live Script

OFDM Wi-Fi Scanner Using SDR Preamble Detection

Retrieve Wi-Fi^® network information from captured OFDM packets.

Open Live Script