Real-Time OcuSync Demodulator: A Software-Defined Radio Based Implementation

초록

The increasing use of commercial drones and the evolution of communication protocols, such as DJI's OcuSync, have raised concerns regarding unauthorized drone activities. While previous studies have examined downlink signals such as DroneID, the uplink Command and Control signals have received relatively little attention. This paper presents a real-time OcuSync demodulator built on a software-defined radio (SDR) platform with a parallel processing architecture. The system supports live signal reception, visualization, and uplink demodulation through an interactive graphical user interface. The architecture ensures responsive operation by distributing demodulation workloads across multiple processes. Future work includes decoding recovered bitstreams to analyze uplink payloads and support advanced counter-drone applications.

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