Search Results - "Arikan, Orhan"

Performance of GPS slant total electron content and IRI-Plas-STEC for days with ionospheric disturbance by Feza Arikan, Seymur Shukurov, Hakan Tuna, Orhan Arikan, T.L. Gulyaeva

“…Total Electron Content (TEC) is an important observable parameter of the ionosphere which forms the main source of error for space based navigation and…”
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Dynamo equation solution using Finite Volume Method for midlatitude ionosphere by Feza Arikan, Umut Sezen, Orhan Arikan

“…Ionosphere is the layer of atmosphere which plays an important role both in space based navigation, positioning and communication systems and HF signals. The…”
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NVIS HF signal propagation in ionosphere using calculus of variations by Umut Sezen, Feza Arikan, Orhan Arikan

“…Modeling Near Vertical Incidence Sounding (NVIS) High Frequency (HF) signal propagation in the ionosphere is important. Because, ionosondes which are special…”
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Tomographic reconstruction of the ionospheric electron density as a function of space and time by Erturk, Onur, Arikan, Orhan, Arikan, Feza

“…Electron density distribution is the major determining parameter of the ionosphere. Computerized Ionospheric Tomography (CIT) is a method to reconstruct…”
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A New Method for Specific Emitter Identification With Results on Real Radar Measurements by Gok, Gokhan, Alp, Yasar Kemal, Arikan, Orhan

“…Specific Emitter Identification (SEI) is the process of specifically identifying mobile transmitters by extracting unique features from the precise…”
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Direct and Two-Step Positioning in Visible Light Systems by Keskin, Musa Furkan, Gezici, Sinan, Arikan, Orhan

“…Visible light positioning (VLP) systems based on light emitting diodes can facilitate high accuracy localization services for indoor scenarios. In this paper,…”
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M-IHS: An accelerated randomized preconditioning method avoiding costly matrix decompositions by Ozaslan, Ibrahim K., Pilanci, Mert, Arikan, Orhan

“…Momentum Iterative Hessian Sketch (▪) techniques, a group of solvers for large scale regularized linear Least Squares (LS) problems, are proposed and analyzed…”
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Perturbed Orthogonal Matching Pursuit by Teke, Oguzhan, Gurbuz, Ali Cafer, Arikan, Orhan

“…Compressive Sensing theory details how a sparsely represented signal in a known basis can be reconstructed with an underdetermined linear measurement model…”
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Adaptive Measurement Matrix Design in Direction of Arrival Estimation by Kilic, Berkan, Gungor, Alper, Kalfa, Mert, Arkan, Orhan

“…Advances in compressed sensing (CS) theory have brought new perspectives to encoding and decoding of signals with sparse representations. The encoding…”
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Estimation Theoretic Optimal Encoding Design for Secure Transmission of Multiple Parameters by Goken, Cagri, Gezici, Sinan, Arikan, Orhan

“…In this paper, optimal deterministic encoding of a vector parameter is investigated in the presence of an eavesdropper. The objective is to minimize the…”
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A Method for Automatic Scaling of Ionograms and Electron Density Reconstruction by Gok, Gokhan, Alp, Yasar Kemal, Arikan, Orhan, Arikan, Feza

“…Ionogram scaling is the process of reconstructing electron density with respect to height by using the measurements of a remote sensing instrument known as…”
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Hidden Semi-Markov Models for Semantic-Graph Language Modeling by Yetim, Sadik Yagiz, Duman, Tolga M., Arikan, Orhan

“…Semantic communication is expected to play a critical role in reducing traffic load in future intelligent large-scale sensor networks. With advances in Machine…”
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Towards goal-oriented semantic signal processing: Applications and future challenges by Kalfa, Mert, Gok, Mehmetcan, Atalik, Arda, Tegin, Busra, Duman, Tolga M., Arikan, Orhan

“…Advances in machine learning technology have enabled real-time extraction of semantic information in signals which can revolutionize signal processing…”
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FIR Filter Design by Convex Optimization Using Directed Iterative Rank Refinement Algorithm by Dedeoglu, Mehmet, Alp, Yasar Kemal, Arikan, Orhan

“…The advances in convex optimization techniques have offered new formulations of design with improved control over the performance of FIR filters. By using…”
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A robust compressive sensing based technique for reconstruction of sparse radar scenes by Teke, Oguzhan, Gurbuz, Ali Cafer, Arikan, Orhan

“…Pulse-Doppler radar has been successfully applied to surveillance and tracking of both moving and stationary targets. For efficient processing of radar…”
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Autofocused Spotlight SAR Image Reconstruction of Off-Grid Sparse Scenes by Camlica, Sedat, Gurbuz, Ali Cafer, Arikan, Orhan

“…Synthetic aperture radar (SAR) has significant role in remote sensing. Phase errors due to uncompensated platform motion, measurement model mismatch, and…”
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Machine learning based hybrid anomaly detection technique for automatic diagnosis of cardiovascular diseases using cardiac sympathetic nerve activity and electrocardiogram by Terzi, Merve Begum, Arikan, Orhan

“…Coronary artery diseases (CADs) are the leading cause of death worldwide and early diagnosis is crucial for timely treatment. To address this, our study…”
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Model based Computerized Ionospheric Tomography in space and time by Tuna, Hakan, Arikan, Orhan, Arikan, Feza

“…Reconstruction of the ionospheric electron density distribution in space and time not only provide basis for better understanding the physical nature of the…”
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Practical hardware demonstration of a multi-sensor goal-oriented semantic signal processing and communications network by Akkoç, Semih, Çınar, Ayberk, Ercan, Berkehan, Kalfa, Mert, Arikan, Orhan

“…Recent advancements in machine learning, particularly real-time extraction of rich semantic information, reshape signal processing techniques and related…”
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Optimal Power Allocation for Jammer Nodes in Wireless Localization Systems by Bayram, Suat, Keskin, Musa Furkan, Gezici, Sinan, Arikan, Orhan

“…In this paper, optimal power allocation strategies are investigated for jammer nodes in a wireless localization system. Building upon the concept of the…”
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