• Overlapping White Blood Cells Detection Based on Watershed Transform and Circle Fitting 

  Sukhia, Komal Nain; Riaz, M. Mohsin; Ghafoor, Abdul; Iltaf, Naima (Společnost pro radioelektronické inženýrství, 2017-12)

  White blood cell (WBC) count and segmentation is considered to be important step to diagnose diseases like leukemia, malaria etc. Automatic analysis of blood smear images will help hematologists to detect WBCs efficiently ...

• Signal Subspace Speech Enhancement with Oblique Projection and Normalization 

  Surendran, Sudeep; Kumar, T. Kishore (Společnost pro radioelektronické inženýrství, 2017-12)

  In this paper, a subspace speech enhancement method handling colored noise using oblique projection is proposed. Perceptual features and variance normalization are used to reduce residual noise and improve speech intelligibility ...

• Automatic Detection of Aerial Vehicle in Cloudy Environment by Using Wavelet Enhancement Technique 

  Pakfiliz, Ahmet G. (Společnost pro radioelektronické inženýrství, 2017-12)

  Automatic target detection of surface to air surveillance and tracking systems in video applications is an important issue, because it is the first step for track initiation and continuity. Target detection can be readily ...

• Signals of Autodyne Sensors with Sinusoidal Frequency Modulation 

  Noskov, Vladislav Ya.; Ignatkov, Kirill A.; Chupahin, Andrey P.; Vasilyev, Aleksandr S.; Ermak, Gennadiy P.; Smolskiy, Sergey M. (Společnost pro radioelektronické inženýrství, 2017-12)

  Research results of signal formation features of the autodyne sensor (AS) with sinusoidal frequency modulation (FM) are presented. Expressions for low frequency information signals are given and their numerical analysis ...

• The Analysis of Closed-form Solution for Energy Detector Dynamic Threshold Adaptation in Cognitive Radio 

  Bozovic, Rade; Simic, Mirjana; Pejovic, Predrag; Dukic, Miroslav L. (Společnost pro radioelektronické inženýrství, 2017-12)

  Spectrum sensing is the most important process in cognitive radio in order to ensure interference avoidance to primary users. For optimal performance of cognitive radio, it is substantial to monitor and promptly react to ...

• DOA Estimation of Multiple LFM Sources Using a STFT-based and FBSS-based MUSIC Algorithm 

  Cui, Kaibo; Chen, Xi; Huang, Jingjian; Yuan, Naichang (Společnost pro radioelektronické inženýrství, 2017-12)

  Direction of arrival (DOA) estimation is an important problem in array signal processing. An effective multiple signal classification (MUSIC) method based on the short-time Fourier transform (STFT) and forward/ backward ...

• Micro-Diversity Analysis of Error Probability and Channel Capacity over Hoyt-Gamma Fading 

  Kumar, Sandeep; Soni, Sanjay Kumar; Jain, Priyanka (Společnost pro radioelektronické inženýrství, 2017-12)

  In wireless communication system, various parameters such as average symbol/bit error probability (ASEP/ABEP), outage probability and average channel capacity, etc. are studied for its performance analysis. In this paper, ...

• Automatic Text-Independent Artifact Detection, Localization, and Classification in the Synthetic Speech 

  Pribil, Jiri; Pribilova, Anna; Matousek, Jindrich (Společnost pro radioelektronické inženýrství, 2017-12)

  The paper describes experiments with statistical approaches to automatic detection, localization, and classification of the basic types of artifacts in the synthetic speech produced by the Czech text-to-speech system using ...

• Carrier Frequency Offset Estimation in OFDM systems as a Quadratic Eigenvalue Problem 

  Eslahi, Amin; Mahmoudi, Alimorad; Kaabi, Hooman (Společnost pro radioelektronické inženýrství, 2017-12)

  Carrier frequency offset (CFO) in orthogonal frequency division multiplexing (OFDM) systems is a major problem in achieving orthogonality between subcarriers. In this paper, we propose an estimator for CFO in OFDM systems ...

• Tuning Range and Power Handling Analysis of DTC-based Matching Networks for Reconfigurable High Power RF Circuits 

  Chalermwisutkul, Suramate; Jantarachote, Vasan; Shivanna, Bhaskar; Phudpong, Ravipat; Akkaraekthalin, Prayoot (Společnost pro radioelektronické inženýrství, 2017-12)

  This paper presents the analysis of tuning range and power handling of digitally tunable capacitors (DTCs) in reconfigurable high power RF circuits. The proposed scheme can be applied to reconfigurable RF system design ...

• Automatic Modulation Classification of LFM and Polyphase-coded Radar Signals 

  Hanbali, Samer Baher Safa; Kastantin, Radwan (Společnost pro radioelektronické inženýrství, 2017-12)

  There are several techniques for detecting and classifying low probability of intercept radar signals such as Wigner distribution, Choi-Williams distribution and time-frequency rate distribution, but these distributions ...

• TDOA, Frequency and Phase Offsets Estimation Taking Into Account Carrier Phase of Arrival 

  Janjic, Milos; Vukmirovic, Nenad; Eric, Miljko (Společnost pro radioelektronické inženýrství, 2017-12)

  This paper deals with estimation of time difference of arrival (TDOA) and phase and frequency offsets between the channels in a receiving system with two distributed time synchronized, but phase and frequency unlocked ...

• Circularly Polarized Suspended Patch Antenna Fed by Modified L-Probe for UHF RFID Reader 

  Cheng, Kok Suen; Lim, Eng-Hock; Phua, Yeong-Nan (Společnost pro radioelektronické inženýrství, 2017-12)

  Two reader antennas, which are designed using the L-probe-fed suspended patch, are designed for the UHF band. To generate circular polarization, the L-shaped probe is modified by including an extra bend to provide one more ...

• Microwave Structural Health Monitoring Sensor for Deformation Measurement of Bended Steel Structures: Influence of Curvature Effect 

  Lopato, Przemyslaw; Herbko, Michal (Společnost pro radioelektronické inženýrství, 2017-12)

  In this paper the utilization of microstrip antenna sensor for deformation monitoring in bended steel structures is presented. This kind of sensing element can be used in structural health monitoring systems. Deformation ...

• Ultra-Wideband RCS Reduction and Gain Enhancement of Aperture-Coupled Antenna Based on Hybrid-FSS 

  Cong, Lili; Cao, Xiangyu; Song, Tao (Společnost pro radioelektronické inženýrství, 2017-12)

  A novel design of aperture-coupled microstrip antenna with ultra-wideband low radar cross section (RCS) is proposed. Hybrid frequency selective surface (FSS) structures consisting of two kinds of polarization-dependent ...

• A Broadband Transmission Metasurface with Polarization-Transforming Functionality 

  Chen, Wei; Gao, Jun; Cao, Xiang-Yu; Yang, Huan-Huan; Zhang, Zhao; Li, Si-Jia; Han, Jiang-Feng; Zhang, Chen (Společnost pro radioelektronické inženýrství, 2017-12)

  A transmission metasurface with polarization-transforming functionalities is presented. The unit cell is characterized by broadband, low profile and low loss. Due to the asymmetric structure, the proposed metasurface shows ...

• Dual-Frequency Impedance Transformer Using Coupled-Line For Ultra-High Transforming Ratio 

  Barik, Rusan Kumar; Karthikeyan, S. S. (Společnost pro radioelektronické inženýrství, 2017-12)

  In this paper, a new type of dual-frequency impedance transformer is presented for ultra-high transforming ratio. The proposed configuration consists of parallel coupled-line, series transmission lines and short-ended ...

• RFID Tag Design Using Spiral Resonators and Defected Ground Structure 

  Veysi, Musab; Ahmadi, Arash; Karimi, Gholamreza; Lalbakhsh, Ali (Společnost pro radioelektronické inženýrství, 2017-12)

  This paper presents a simple generalized approach to design a compact chipless radio frequency identification tag. The proposed chipless tag encodes data into the spectral signature using a set of spiral resonators on both ...

• Open-source implementation of an ad-hoc IEEE802.11a/g/p software-defined radio on low-power and low-cost general purpose processors 

  Ciccia, Simone; Giordanengo, Giorgio; Vecchi, Giuseppe (Společnost pro radioelektronické inženýrství, 2017-12)

  This work proposes a low-cost and low-power software-defined radio open-source platform with IEEE 802.11 a/g/p wireless communication capability. A state-of-the-art version of the IEEE 802.11 a/g/p software for GNU Radio ...

• Linear Array Pattern Synthesis Using An Improved Multiobjective Genetic Algorithm 

  Han, Chuang; Wang, Ling; Zhang, Zhaolin; Xie, Jian; Xing, Zijian (Společnost pro radioelektronické inženýrství, 2017-12)

  In this paper, we propose an improved nondominated sorting genetic algorithm-II with scope constrained (INSGA-II/SC) with three modifications, which are dynamic nondomination strategy, scope-constrained strategy, and front ...

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