Kun Liu, Lingfeng Weng, Junfeng Jiang, Pengfei Ma, Zhenshi Sun, Liwang Zhang, Tiegen Liu. Zero-Crossing Rate Based Efficient Identification of Intrusion Events in Fiber Perimeter Security Systems[J]. Acta Optica Sinica, 2019, 39(11): 1106002
- Acta Optica Sinica
- Vol. 39, Issue 11, 1106002 (2019)
Fig. 1. System sensing schematic
Fig. 2. Structural diagram of support vector machine
Fig. 3. Original signals of five events. (a) Cutting; (b) waggling; (c) climbing; (d) knocking; (e) no intrusion
Fig. 4. Segment zero-crossing rates of five events. (a) Cutting; (b) waggling; (c) climbing; (d) knocking; (e) no intrusion
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Table 1. Extraction time of zero-crossing rate for four eventsms
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Table 2. Comparison of event recognition results of two methods%
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