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A Fiber-Gating Intelligent Adaptive Alarm Algorithm Based on Wavelet Analysis

For Fiber-Grating Perimeter-Intrusion alarm system, a Fiber-Grating intelligent adaptive alarm algorithm based on wavelet analysis and difference algorithm was proposed. The algorithm precedes the real-time waveform by wavelets decomposition, and acquired the assertion values of each subband by difference calculation. Through the method of comparing the assertion value of some subband, intelligent adaptive alarm system was realized. The experiments indicate that the proposed algorithm can give an alarm for illegal intrusion with good performance and false alarm below 1.5%, and it provides a promising application prospect for intelligent adaptive alarm.