CRPC® (Cognitive Radio Protocol Cracking) is a cognitive radio protocol reverse resolution technology developed by Lizheng Technology, and it was first used in low-altitude UAV detection and defense. It uses radio spectrum sensing technology (similar to the feature extraction of viruses by Internet antivirus software) to extract UAV communication signals (mainly remote control and picture transmission signals) from background noise and carry out in-depth reverse analysis.

Features (electronic fingerprint ID) are extracted through offline analysis of UAV communication protocols, including but not limited to channel distribution, modulation scheme, coding scheme, pilot sequence, synchronization sequence, link layer structure, etc. Then the UAV detection database will be formed according to the above analysis results, and the real-time detection and matching are carried out in the actual radio environment. Finally, the features are applied to the real-time detection (rapid feature matching and recognition) and precision strike (distinguishing different UAVs for strike) of UAVs.

Technical Features:

1. Better detection sensitivity, signal-noise ratio and accuracy;

2. Able to identify the ID of drones to achieve the same frequency differentiation, black and white list and other functions;

3. Use the interference reference signal to obtain accurate and efficient jamming effect;

4. High precision synchronous frame structure to obtain signal frame timestamp, phase and coherence power for orientation and positioning systems;

5. Launch fake physical layer frame structure to mislead the target UAV (i.e. achieve UAV takeover).