In this paper, the analysis for data collected for two different line follower robots vehicles are presented. Keeping the hardware identical, the two vehicles were programmed with two different algorithms. When taking a turn, a correlation between its turning angle and the angle of line turn was observed. To find that correlation, experimental data was collected after varying critical parameters. After that, a mathematical representation was derived to calculate the required turning angle for any line angle.
Underwater object detection has a considerable impact in the field of ocean technology. This paper presents a techniqueto detect a submerged object based on the medium's spectral attenuation coefficient by applying Beer-Lambert Law. The value of this coefficient is a function of the medium's composition, depth of the object,and wavelength of incident light. Experiments were performed in a swimming pool using objects of different colors at different depths to validate the mathematical model for object detection.
This paper presents the research work for a proposed novel scheme for generating a flat and equally spaced optical frequency comb using a simulated layout using Optisystem. Three pump sources at 1 nm wavelength apart are injected along with a 25 GHz RF signal having different amplitudes into a cascade of Dual-Drive Mach-Zehnder Modulator and Electro-Absorption Modulator and multiple highly nonlinear fiber loops. The initial scheme is using Four Wave - Mixing and yields a comb of 27 lines with uneven gain and a 6 dBm power deviation. After characterizing the response by exploring critical parameters such as pump power, frequency spacing, dispersion effect, Erbium Doped Fiber Amplifier and DC bias of the modulators, the researchers were able to reduce the power deviation down to 2 dBm at the expense of some comb lines. This final optimized scheme was then evaluated for a preliminary Wavelength Division Multiplexing setup having only five channels/modes at 10 Gb/s for a channel length of 1 km. Each of the received de-multiplexed channels was evaluated through recorded data in the form of Bit Error Rate and Quality-factor and the final results are shown to be quite promising.
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