Spectrum Monitoring
Configure your NI™ USRP™ radio as a preamble detector or energy detector to detect and capture specific signals from the air. You can specify standard-based or custom waveforms for detection. Use the captured data to analyze, simulate, test, and validate wireless systems.
Objects
preambleDetector | Configure SDR as preamble detector (Since R2022a) |
energyDetector | Configure SDR as energy detector (Since R2023b) |
Functions
Topics
- Phase-Synchronize Operations
Configure LO sharing and measure phase offsets between RF channels. (Since R2025a)
Featured Examples
Triggered Capture Using Preamble Detection
Capture data from the air upon detecting a preamble sequence.
Triggered Capture Using Energy Detection
Capture data from the air upon detecting signal energy.
NR and LTE Cellular PSS Band Scanner
Scan for 5G NR and LTE primary synchronization signals (PSS) using preamble detection.
Triggered WLAN Waveform Capture Using Preamble Detection
Capture WLAN waveform from the air upon detecting a legacy long training field (L-LTF).
OFDM Wi-Fi Scanner Using SDR Preamble Detection
Retrieve Wi-Fi® network information from captured OFDM packets.
WLAN Activity Scanner
Scan for Wi-Fi network activity using preamble detection.
Detect Clear WLAN Channels and Transmit
Detect clear WLAN channels using energy detection and transmit a waveform.
Detect Human Presence Using Wireless Sensing with Deep Learning
Perform wireless sensing to detect human presence using a CNN and the channel state information in wireless local area networks.
Capture and Label NR and LTE Signals for AI Training
Scan, capture, and label bandwidths with 5G NR and LTE signals.
