A method for OcuSync signal detection based on ZC sequence correlation accumulation
By using a signal detection method based on ZC sequence correlation accumulation, the problem of detecting DJI OcuSync signals in complex electromagnetic environments was solved, achieving high-sensitivity signal capture and recognition, and improving the stability and accuracy of detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHEJIANG SCI-TECH UNIV
- Filing Date
- 2026-05-12
- Publication Date
- 2026-07-17
AI Technical Summary
Existing passive detection technologies face problems such as poor adaptability to fixed thresholds and low capture rate of weak signals when detecting DJI OcuSync series protocol signals. In particular, it is difficult to accurately extract cross-correlation peaks in complex electromagnetic environments, resulting in high false alarm rate and high false detection rate.
A signal detection method based on ZC sequence correlation accumulation is adopted, which achieves high-sensitivity capture and recognition of OcuSync signals through signal preprocessing, feature root index locking, sliding cross-correlation operation, multi-frame incoherent accumulation and dynamic decision threshold construction.
It effectively suppresses random noise, improves signal acquisition depth in extremely low signal-to-noise ratio environments, ensures stable detection performance in complex electromagnetic environments, reduces false alarm rate, and improves detection robustness.
Smart Images
Figure CN122420186A_ABST