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Modern people are to spend a lot of time living and working in sedentary postures. But the maintenance of wrong posture causes a lot of strain on the body. So diseases of the musculoskeletal system causes. Wrong habits of sedentary posture are neck and spine, pelvis to influence. And initially it accompanied by simply discomfort or pain But wrong posture that has persisted for a long time can lead...
We demonstrate a TOTDR based on direct modulation of self-injection locked RSOA for line monitoring of WDM-PON. The proposed TOTDR has 30 nm tuning range and 50 m resolution.
We propose a tunable optical time-domain reflectometer (OTDR) for in-service monitoring of wavelength- division- multiplexing passive optical networks (WDM-PONs). The proposed method uses a reflective semiconductor optical amplifier, which is self-injection-locked by a tunable fiber Bragg grating. The proposed tunable OTDR has a tuning range of 30 nm and a resolution of 50 m. The performance of the...
Principle component analysis (PCA) is a dimensionality reduction technique for data analysis and processing, and it is a linear method that can maximize the variance of data. In this paper, to achieve the high efficiency for data classification, nonlinear PCA using local probability is proposed. Parameters are extracted from each distribution of data and mapping function of data set is made using...
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