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Article A New Model for Indoor Propagation Prediction Using Genetic Algorithm(Ieice-inst Electronics information Communications Eng, 2008) Aydin, ElifIn this study, a new, simple and accurate computation of the received signal strength (RSS) level for indoor environment is performed. The genetic algorithm (GA) approach is used for prediction of the RSS. The proposed model is formed on the knowledge of measurements without requiring any detail of the environment. The model provides a time efficient method to estimate RSS dynamically at any location in the test environment. The accuracy of the measurement results and the genetic algorithm approach are presented for three distinct transmitters located at different positions.Article Citation - WoS: 19Citation - Scopus: 27Modelling and Optimisation of an 8 X 8 Heavy Duty Vehicle's Hydro-Pneumatic Suspension System(inderscience Enterprises Ltd, 2016) Kucuk, Kahraman; Yurt, Hunkar Kemal; Arikan, Kutluk Bilge; Mrek, HuseyinIn this paper, modelling of the hydro-pneumatic suspension (HPS) system of a heavy duty vehicle that has all-wheel steering and driving capability is studied. The prototype vehicle of concern is a mobile telescopic crane. The spring and damper effects of the HPS, which is used generally in heavy commercial vehicles and in military vehicles, have been modelled separately. First, HPS dynamics is studied on 1/8 vehicle model and then vehicle dynamics is examined on the MSC ADAMS/Car model. HPS of the prototype vehicle is assessed by some objective functions. In addition, simulation-based optimisation is performed using a 1/8 vehicle model. Various designs are obtained and their performances are compared with that of the prototype vehicle's HPS by the ADAMS/Car model simulations. Modelling and optimisation studies reveal a sound background to improve the prototype vehicle and to design active HPS system.Article Citation - WoS: 4Citation - Scopus: 4Genetic Algorithm Approach To Estimate Radar Cross Section of Dielectric Objects(Ieice-inst Electronics information Communications Eng, 2003) Aydin, E; Nakiboglu, KC; Department of Electrical & Electronics EngineeringGenetic algorithm (GA) is a widely used numerical technique to simplify some analytical solutions in electromagnetic theory. Genetic algorithms can be combined with the geometric optics method to tackle electromagnetic scattering problems. This paper presents an extrapolation procedure, which derived, as a first step, a functional representation of the radar cross section (RCS) of three different dielectric objects that was computed via the Mie solution or the method of moments (MOM). An algorithm was employed to fit the scattering characteristics of dielectric objects at high frequencies.
