A novel multiple filtering method for UAV vibration signal obtained by using optical fiber sensor

Unmanned aerial vehicles (UAV) are gradually applied in varied fields because of its high efficiency, precision and flexibility. The structural damages of UAV have become a prominent safety issue for ensuring the structural safety. To control the vibration caused safety and economic loss efficiently, vibration detection is of ultimate importance. The recent research in the optical fiber sensor-based new detecting technology has shown the good application potential and unique advantages owing to its high sensitivity. For detecting the UAV vibration signal, we designed a fiber sensor, and built a fiber signal processing system. This paper proposes a novel method for filtering vibration signals obtained by optical fiber grating-based fiber signal sensing, which achieves an excellent singular signal detection ability and resolution capability.