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    Determining the Changes of Cultural Landscapes in the Historical Process: Germir District, Kayseri, Turkey
    (Online Journal Of Art And Design, 2023) Çetinkaya Sönmez, Merve; Ertuğ, Özgür
    Today, cultural landscapes are undergoing rapid changes. These changes have raised the issue of understanding and defining change in the context of the protection and management of cultural landscapes. In this context, there are many studies with different perspectives on detection of change. In this study, the historical landscape assessment which is a quantitative method and the survey-analysis study which is a qualitative method was applied for Melikgazi district Germir province. For this purpose, aerial photographs and maps taken at different periods (1959,1975, 1986, 1992, 2005, 2015, 2020) were used within the scope of historical landscape assessment. In addition, a field study was conducted within the scope of survey-analysis method. The findings of the research were grouped under three headings. These are changes in the natural environment, changes in concrete cultural heritage and changes in intangible cultural heritage. As a result of the study, it was determined that cultural landscape values of Melikgazi/Germir District changed over time. In the conclusion part, the changes and transformation of historical and cultural landscapes are presented. As a result of the research, it has been determined that the area has lost its original quality and has undergone structural and cultural changes.
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    Öğe
    On the comparative performance analysis of turbo-coded non-ıdeal single-carrier and multi-carrier waveforms over wideband vogler-hoffmeyer hf channels
    (Radioengineering Journal, 2014) Savaşçıhabeş, Asuman; Genç, Fatih; Resşat, M. Anıl; Ertuğ, Özgür
    The purpose of this paper is to compare the turbo-coded Orthogonal Frequency Division Multiplexing (OFDM) and turbo-coded Single Carrier Frequency Domain Equalization (SC-FDE) systems under the effects of Carrier Frequency Offset (CFO), Symbol Timing Offset (STO) and phase noise in wide-band Vogler-Hoffmeyer HF channel model. In mobile communication systems multipath propagation occurs. Therefore channel estimation and equalization is additionally necessary. Furthermore a nonideal local oscillator generally is misaligned with the operating frequency at the receiver. This causes carrier frequency offset. Hence in coded SC-FDE and coded OFDM systems; a very efficient, low complex frequency domain channel estimation and equalization is implemented in this paper. Also Cyclic Prefix (CP) based synchronization synchronizes the clock and carrier frequency offset. The simulations show that non-ideal turbo-coded OFDM has better performance with greater diversity than non-ideal turbo-coded SC-FDE system in HF channel.