Considered survey systems for monitoring the earth’s surface of the techniques basic and developed for all countries because of their great importance in collecting and providing data and information required as engineering science and research applications can be an important database for many of the establishments. Remote sensing and fuzzy logic are employed to design systems for the survey, monitoring, and changes detect that have occurred in the study area in 2020. The studied area is in Baghdad and its extensions, with an area equivalent to approximately 2776.7628 km2. This paper consists of two parts; the first part when the remote sensing classified the study area in unsupervised methods to detect the ratios of components the land use and land cover via divide it into four parameters (vegetation, urban, empty area, and water). As for the second part of the study, the change’s detection results are the inputs of the fuzzy logic system. The four inputs were processed using hypothetical probabilities of the FL system. The results were reasonable and could be considered useful for predicting the future of the four parameters (vegetation, urban, empty area, and water) of the study area in the coming years.
The increasing demand for information transmission makes the problem of establishing a laser system is operating in C-band (1530-1565nm) wavelength region is a significant task, which attracts a lot of researchers' attention lately. In this paper, the ability to produce signals of multi wavelengths using a single light source was adopted to employ the Raman scattering effect for establishing Raman shift configuration-based multi-wavelength fiber lasers, which is not currently addressed in available schemes. This is what prompted to simulate the performance of C-band multi-wavelength produced by Raman fiber laser that utilizing fiber Bragg grating (FBG) to amplify pumped power and also utilizing the single-mode fiber (SMF) as the nonlinear gain medium. The proposed laser system is designed by OptiSystem software. The resulted maximum output power was 22.07dB at Wavelength Division Multiplexing (WDM) of 23.01dB input power. The achieved multi-wavelength that generated by Bragg grating and SMF was containing six Stokes and anti-Stokes, they are: 1548.51nm, 1549, 31nm, 1550.116nm, 1550.91nm, 1551.72nm, and 1552.52nm, in which the resulted computed efficiency of the system was raised up to 80.23% at input power 20 dB and dispersion fiber length of 0.2 km.
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