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Yengel, Emre

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Yrd. Doç. Dr.
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e.yengel@cankaya.edu.tr
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Elektrik-Elektronik Mühendisliği
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Former Staff
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Scholarly Output

4

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0

Citation Count

5

Supervised Theses

1

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2003 - 200922010 - 20142
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Now showing 1 - 4 of 4
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    Master Thesis
    Implementation of DOA by SR
    (2005) Yengel, Emre; Elektrik-Elektronik Mühendisliği
    This study describes a new estimation method used for low signal to noise ratio in non-Gaussian noise. A nonlinear estimator is developed by combining a nonlinear processing method called Stochastic Resonance with Wiener filter. In the method, the recieved signal is first quantized by a symmetric 3-level quantizer and processed by the Wiener filter. Simulation results show that under sufficiently low signal to noise ratio conditions, this quantizer-estimator leads an enhancement of the estimation performaned by the Wiener filter. Non-Gaussian noise distributions that are used in simulations are relevant for an underwater acoustic enviorement. This kind of estimators can be used in Direction Of Arrival (DOA) applications
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    Conference Object
    Comparison of physical optics integral and exact solutions for cylinder problem
    (2003) Umul, Yusuf Ziya; Yengel, Emre; Aydın, Ayhan; Elektronik ve Haberleşme Mühendisliği; Elektrik-Elektronik Mühendisliği; Bilgisayar Mühendisliği
    The sound source composition of the urban sound environment varies depending on the geography and socio-cultural context. Current sound taxonomies in the literature categorize urban sound sources by their source types (e.g., human-made, natural, electromechanical) and respective semantic attributes. This study aims to add another taxonomical layer to the existing urban sound source categorization methods. The additional layer is a recently proposed sound source classification framework (CLIC). The CLIC framework identifies sound sources based on their Diegesis and Intention parametric attributes. The former parametric attribute, diegesis, was derived from film sound design. The geographical and socio-cultural context of the built environment can be considered as its narrative; hence, every event that happens within the functional context can be called diegetic, while the events that do not belong to that specific place can be called nondiegetic. The latter parametric attribute, intention, was derived from product design. One of the prominent sound source categorization methods in product sound design is to group the product emitted sounds as consequential and intentional. Combining these two parametric attributes with the existing taxonomies, the CLIC framework outputs a place-specific design guideline, clearly dictating the actions a sound designer should take. The two parametric attributes group the sound sources under four distinct areas, which dictates the degree of influence of designers on the specific sound source. The four zones are defined as the creation zone, limitation zone, isolation zone, and control zone. Each zone dictates step-by-step sound design instructions for the sound designer. This study consists of two main phases: field recordings and web-based listening tests. The sound sources present in the urban sound environment were identified in the field recordings phase. Later, in the web-based listening tests phase, the identified sound sources were evaluated based on the CLIC framework, and hence, their respective zones on the model were identified. The outcomes of the study propose clear step-by-step design guidelines and present action suggestions for environmental sound designers.
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    Conference Object
    Citation - WoS: 1
    Citation - Scopus: 5
    On the Optimum Ring Ratio Determination for 16-DAPSK Modulation in OFDM Systems
    (Ieee, 2014) Genc, Fatih; Yengel, Emre; Yengel, Emre; Savascihabes, Asuman; Ertug, Ozgur; Elektrik-Elektronik Mühendisliği
    In this paper the multilevel modulation techniques of 16-Differential Amplitude Phase Shift Keying (16-DAPSK) with Orthogonal Frequency Division Multiplexing (OFDM) has been proposed with the optimum ring ratio in flat Rayleigh fading channel. By this way best Bit Error Rate (BER) performance is achieved in 16-DAPSK-OFDM systems. BER derivation and the proposed system simulation results show that optimum ring ratio is obviously different for flat Rayleigh fading channel than AWGN channel. It is concluded the proposed optimum ring ratio between [2.0,2.6] can be a promising choice to achieve optimum BER performance for 16DAPSK-OFDM in flat Rayleigh fading channels.
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    Conference Object
    Image-Based Remote Control Using FPGA
    (2014) Bingöl, Hilal; Yengel, Emre; Başayar, Tuğba; Genç, Fatih; Yengel, Emre; 218795; Mekatronik Mühendisliği; Elektrik-Elektronik Mühendisliği