Photonic Sensors, 2016, 6 (3): 261, 网络出版: 2016-10-20   

A New Detection Method Based on CFAR and DE for OFPS

A New Detection Method Based on CFAR and DE for OFPS
作者单位
1 School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing, 100191, China
2 College of Electrical & Information Engineering, North China University of Technology, Beijing, 100144, China
摘要
Abstract
Optical fiber pre-warning system (OFPS) is widely utilized in pipeline transport fields. The intrusions of OFPS need to be located. In this system, the original signals consist of noises, interferences, and intrusion signals. Here, noises are background and harmless interferences possessing with high power, and the intrusion signals are the main target of detection in this system. Hence, the study stresses on extracting the intrusion signals from the total ones. The proposed method can be divided into two parts, constant false alarm rate (CFAR) and dilation and erosion (DE). The former is applied to eliminate noises, and the latter is to remove interferences. According to some researches, the feature of noise background accords with the CFAR spatial detection. Furthermore, the detection results after CFAR can be presented as a binary image of time and space. Besides, interferences are relatively disconnected. Consequently, they can be eliminated by DE which is introduced from the image processing. To sum up, this novel method is based on CFAR and DE which can eliminate noises and interferences effectively. Moreover, it performs a brilliant detection performance. A series of tests were developed in Men Tou Gou of Beijing, China, and the reliability of proposed method can be verified by these tests.

Zezheng QIU, Tong ZHENG, Hongquan QU, Liping PANG. A New Detection Method Based on CFAR and DE for OFPS[J]. Photonic Sensors, 2016, 6(3): 261. Zezheng QIU, Tong ZHENG, Hongquan QU, Liping PANG. A New Detection Method Based on CFAR and DE for OFPS[J]. Photonic Sensors, 2016, 6(3): 261.

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